{"id":895,"date":"2026-05-12T09:00:33","date_gmt":"2026-05-12T09:00:33","guid":{"rendered":"https:\/\/www.marcorubber.com\/blog\/?p=895"},"modified":"2026-04-30T13:13:30","modified_gmt":"2026-04-30T13:13:30","slug":"ppap","status":"publish","type":"post","link":"https:\/\/www.marcorubber.com\/blog\/?p=895","title":{"rendered":"Understanding PPAP (Production Part Approval Process)"},"content":{"rendered":"<h1><span class=\"EOP SCXW149302953 BCX0\" data-ccp-props=\"{}\"><span class=\"TextRun MacChromeBold SCXW112532695 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW112532695 BCX0\" data-ccp-parastyle=\"heading 1\">What Is PPAP?<\/span><\/span><span class=\"EOP SCXW112532695 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span> <\/span><\/h1>\n<p><span data-contrast=\"auto\">PPAP stands for Production Part Approval Process. It is a document package that provides reassurance to customers that\u00a0Marco Sealing Solutions\u00a0understands their requirements and\u00a0is able to\u00a0meet them.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:60}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">PPAP is an industry standard that originated in automotive and aerospace. However, it is a tool that can be used by any end user in any industry.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<blockquote><p><span class=\"TextRun SCXW24288772 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW24288772 BCX0\">The core purpose of a PPAP is to\u00a0<\/span><span class=\"NormalTextRun SCXW24288772 BCX0\">establish<\/span><span class=\"NormalTextRun SCXW24288772 BCX0\">\u00a0confidence and alignment between the supplier and the customer before production begins. It is not just paperwork. It is evidence that everyone involved understands the product, the process, and the requirements.<\/span><\/span><span class=\"EOP SCXW24288772 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/p><\/blockquote>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-902 size-large\" src=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Trust-1024x683.jpg\" alt=\"Trust\" width=\"800\" height=\"534\" srcset=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Trust-1024x683.jpg 1024w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Trust-300x200.jpg 300w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Trust-768x512.jpg 768w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Trust-1536x1024.jpg 1536w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Trust-2048x1365.jpg 2048w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2><span class=\"TextRun MacChromeBold SCXW44477410 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW44477410 BCX0\" data-ccp-parastyle=\"heading 1\">Why Does PPAP Matter?<\/span><\/span><span class=\"EOP SCXW44477410 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<p><span class=\"TextRun SCXW16867032 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW16867032 BCX0\">Not every supplier can provide a PPAP. The ability to deliver one signals a higher level of capability and quality rigor. For\u00a0<\/span><span class=\"NormalTextRun SCXW16867032 BCX0\">Marco<\/span><span class=\"NormalTextRun SCXW16867032 BCX0\">, PPAP is a competitive differentiator.<\/span><\/span><span class=\"EOP SCXW16867032 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<p><span class=\"TextRun SCXW64352637 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW64352637 BCX0\">Here is what a PPAP accomplishes:<\/span><\/span><span class=\"EOP SCXW64352637 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Reduces risk of defects and quality issues by ensuring alignment before production starts<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Confirms that Marco and the factory understand every requirement for the finished part and any process it will go through<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Builds trust and assurance in the production process<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Creates a documented record that can be passed along through the supply chain, including to aerospace and automotive end users<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Strengthens long-term supplier relationships and customer confidence<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-901 size-large\" src=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Check-board-1024x683.jpg\" alt=\"Checkmark\" width=\"800\" height=\"534\" srcset=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Check-board-1024x683.jpg 1024w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Check-board-300x200.jpg 300w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Check-board-768x512.jpg 768w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Check-board-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2><span class=\"TextRun MacChromeBold SCXW135306021 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW135306021 BCX0\" data-ccp-parastyle=\"heading 1\">When Is PPAP Required?<\/span><\/span><span class=\"EOP SCXW135306021 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<p><span class=\"TextRun SCXW59364098 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW59364098 BCX0\">The customer always\u00a0<\/span><span class=\"NormalTextRun SCXW59364098 BCX0\">determines<\/span><span class=\"NormalTextRun SCXW59364098 BCX0\">\u00a0whether a PPAP is\u00a0<\/span><span class=\"NormalTextRun SCXW59364098 BCX0\">required<\/span><span class=\"NormalTextRun SCXW59364098 BCX0\">. Marco will never tell a customer they need one, though the team may suggest it\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW59364098 BCX0\">to create<\/span><span class=\"NormalTextRun SCXW59364098 BCX0\">\u00a0further alignment. Common triggers include:<\/span><\/span><span class=\"EOP SCXW59364098 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Launch of a new product or part<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Introduction of new tooling<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Revision changes to a part that was previously approved through PPAP<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">A change in the production facility location<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">A customer request at any time, including for parts that have been in production for years<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<\/ul>\n<blockquote><p><span class=\"TextRun SCXW164680836 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW164680836 BCX0\">Important note: A PPAP is not\u00a0<\/span><span class=\"NormalTextRun SCXW164680836 BCX0\">required<\/span><span class=\"NormalTextRun SCXW164680836 BCX0\">\u00a0for every order. Once a PPAP is approved and nothing changes, production continues under that approval. But if the customer changes their requirements or wants\u00a0<\/span><span class=\"NormalTextRun SCXW164680836 BCX0\">additional<\/span><span class=\"NormalTextRun SCXW164680836 BCX0\">\u00a0security, they can request a new one, even for legacy parts with a long production history.<\/span><\/span><span class=\"EOP SCXW164680836 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<h2><span class=\"TextRun MacChromeBold SCXW198019366 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW198019366 BCX0\" data-ccp-parastyle=\"heading 1\">PPAP Submission Levels<\/span><\/span><span class=\"EOP SCXW198019366 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\"><span class=\"TextRun SCXW31775958 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW31775958 BCX0\">There are five PPAP submission levels. Level 3 is the most common and is considered the industry standard. Each level\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW31775958 BCX0\">builds on<\/span><span class=\"NormalTextRun SCXW31775958 BCX0\">\u00a0the one before it.<\/span><\/span><span class=\"EOP SCXW31775958 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/span><\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li><span class=\"TextRun MacChromeBold SCXW72317887 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW72317887 BCX0\"><strong>Part Submission Warrant Only &#8211; <\/strong><\/span><\/span><span class=\"TextRun SCXW61506156 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW61506156 BCX0\">The Part<\/span><span class=\"NormalTextRun SCXW61506156 BCX0\">\u00a0Submission Warrant (PSW) alone. Details tooling method,\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW61506156 BCX0\">run<\/span><span class=\"NormalTextRun SCXW61506156 BCX0\">\u00a0rates, and\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW61506156 BCX0\">serves<\/span><span class=\"NormalTextRun SCXW61506156 BCX0\">\u00a0as the sign-off document for both sides. Used when the customer already has the goods.<\/span><\/span><span class=\"EOP SCXW61506156 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><strong><span class=\"TextRun MacChromeBold SCXW6386968 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW6386968 BCX0\">PSW + Limited Data<\/span><\/span><\/strong><span class=\"EOP SCXW6386968 BCX0\" data-ccp-props=\"{}\"><strong> &#8211; <\/strong><\/span><span class=\"EOP SCXW6386968 BCX0\" data-ccp-props=\"{}\"><span class=\"TextRun SCXW136860026 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW136860026 BCX0\">PSW plus limited supporting data such as a certificate of conformance, dimensional reports, or physical samples.<\/span><\/span><span class=\"EOP SCXW136860026 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><br \/>\n<\/span><\/li>\n<li><strong><span class=\"TextRun MacChromeBold SCXW221239883 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW221239883 BCX0\">Full PPAP Package (Standard) &#8211; <\/span><\/span><\/strong><span class=\"EOP SCXW221239883 BCX0\" data-ccp-props=\"{}\"><span class=\"TextRun SCXW164693625 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW164693625 BCX0\">The bread and butter. PSW, dimensional reports, statistical analysis, and material compliance data. Satisfies 99% of customer requirements. This is what Marco produces by default.<\/span><\/span><\/span><\/li>\n<li><strong><span class=\"TextRun MacChromeBold SCXW210302388 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW210302388 BCX0\">Level 3 + Customer-Specific Requirements<\/span><\/span><span class=\"EOP SCXW210302388 BCX0\" data-ccp-props=\"{}\"> &#8211;\u00a0<\/span><\/strong><span class=\"TextRun SCXW258142741 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW258142741 BCX0\">Everything in Level 3 plus any <\/span><span class=\"NormalTextRun SCXW258142741 BCX0\">additional<\/span><span class=\"NormalTextRun SCXW258142741 BCX0\">\u00a0documents the customer\u00a0<\/span><span class=\"NormalTextRun SCXW258142741 BCX0\">requires<\/span><span class=\"NormalTextRun SCXW258142741 BCX0\">\u00a0specific to their product or part line. This is where requirements become a la carte.<\/span><\/span><span class=\"EOP SCXW258142741 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><strong><span class=\"TextRun MacChromeBold SCXW265536000 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW265536000 BCX0\">Full Package + On-Site Audit<\/span><\/span><span class=\"EOP SCXW265536000 BCX0\" data-ccp-props=\"{}\"> &#8211;\u00a0<\/span><\/strong><span class=\"TextRun SCXW132417653 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun AdvancedProofingIssueV2Themed SCXW132417653 BCX0\">All of<\/span><span class=\"NormalTextRun SCXW132417653 BCX0\">\u00a0the above plus a physical audit of the production facility. The customer comes to the factory to review all documented processes in person. This level is rare.<\/span><\/span><span class=\"EOP SCXW132417653 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<h2><span class=\"TextRun MacChromeBold SCXW266639228 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW266639228 BCX0\" data-ccp-parastyle=\"heading 1\">Core Elements of a Level 3 PPAP Package<\/span><\/span><span class=\"EOP SCXW266639228 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<p><span class=\"TextRun SCXW150229838 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW150229838 BCX0\">A complete Level 3 PPAP\u00a0<\/span><span class=\"NormalTextRun SCXW150229838 BCX0\">contains<\/span><span class=\"NormalTextRun SCXW150229838 BCX0\">\u00a0the following documents. Each one serves a specific function in\u00a0<\/span><span class=\"NormalTextRun SCXW150229838 BCX0\">validating<\/span><span class=\"NormalTextRun SCXW150229838 BCX0\">\u00a0that the part and process meet customer requirements.<\/span><\/span><span class=\"EOP SCXW150229838 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><span class=\"TextRun MacChromeBold SCXW86061904 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW86061904 BCX0\">1. Part Submission Warrant (PSW)<\/span><\/span><span class=\"EOP SCXW86061904 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span class=\"TextRun SCXW136369215 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW136369215 BCX0\">The foundational document\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW136369215 BCX0\">present<\/span><span class=\"NormalTextRun SCXW136369215 BCX0\">\u00a0in every PPAP level. Details the part number, the referenced drawing, tooling cavities, run rates, and other critical information. The PSW is signed by both Marco and the customer. A signed PSW returned to Marco\u00a0<\/span><span class=\"NormalTextRun SCXW136369215 BCX0\">represents<\/span><span class=\"NormalTextRun SCXW136369215 BCX0\">\u00a0formal customer approval.<\/span><\/span><span class=\"EOP SCXW136369215 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><span class=\"TextRun MacChromeBold SCXW44934455 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW44934455 BCX0\">2. Design Record<\/span><\/span><span class=\"EOP SCXW44934455 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span class=\"TextRun SCXW181948662 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW181948662 BCX0\">Confirms agreement to the current revision level of the part drawing.\u00a0<\/span><span class=\"NormalTextRun SCXW181948662 BCX0\">Documents any specific engineering changes that may impact the end product.<\/span><\/span><span class=\"EOP SCXW181948662 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><span class=\"TextRun MacChromeBold SCXW252907417 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW252907417 BCX0\">3. PFMEA (Process Failure Mode and Effects Analysis)<\/span><\/span><span class=\"EOP SCXW252907417 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span class=\"TextRun SCXW19585980 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW19585980 BCX0\">Developed by the production team. This analysis works through what happens if something goes wrong. For example: What is the impact\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW19585980 BCX0\">if<\/span><span class=\"NormalTextRun SCXW19585980 BCX0\">\u00a0the wrong material is used? What if the wrong measuring tools are applied? The PFMEA fail-proofs the process and documents the corrective steps for each potential failure.<\/span><\/span><span class=\"EOP SCXW19585980 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><span class=\"TextRun MacChromeBold SCXW171164657 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW171164657 BCX0\">4. Control Plan<\/span><\/span><span class=\"EOP SCXW171164657 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span class=\"TextRun SCXW212715644 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW212715644 BCX0\">An outline of every step in the production process from start to finish. Shows exactly how the production facility handles each stage of manufacturing.<\/span><\/span><span class=\"EOP SCXW212715644 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><span class=\"TextRun MacChromeBold SCXW198485493 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW198485493 BCX0\">5. MSA (Measurement System Analysis) \/ Gauge R&amp;R<\/span><\/span><span class=\"EOP SCXW198485493 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span class=\"TextRun SCXW181148502 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW181148502 BCX0\">An analysis of the reliability and repeatability of the factory&#8217;s measurement tools and methods. In practice, this can look like three different engineers measuring the same parts with the same tools and recording their results independently. This reveals how reliable the gauges and testing\u00a0<\/span><span class=\"NormalTextRun SCXW181148502 BCX0\">methodology<\/span><span class=\"NormalTextRun SCXW181148502 BCX0\">\u00a0are.<\/span><\/span><span class=\"EOP SCXW181148502 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><span class=\"TextRun MacChromeBold SCXW217374100 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW217374100 BCX0\">6. Dimensional Results<\/span><\/span><span class=\"EOP SCXW217374100 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span class=\"TextRun SCXW244947678 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW244947678 BCX0\">Measurements taken on all dimensions specified in the drawing. Every specified dimension must be measured and confirmed as meeting requirements.<\/span><\/span><span class=\"EOP SCXW244947678 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><span class=\"TextRun MacChromeBold SCXW244614802 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW244614802 BCX0\">7. Material and Performance Testing<\/span><\/span><span class=\"EOP SCXW244614802 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span class=\"TextRun SCXW194737041 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW194737041 BCX0\">May include a standard spec sheet or\u00a0<\/span><span class=\"NormalTextRun SCXW194737041 BCX0\">additional<\/span><span class=\"NormalTextRun SCXW194737041 BCX0\">\u00a0test results based on what the print requires. For example, if a part must be exposed to ozone, the PPAP includes documentation of how the part performs under those conditions.<\/span><\/span><span class=\"EOP SCXW194737041 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><span class=\"TextRun MacChromeBold SCXW11833712 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW11833712 BCX0\">8. Process Capability Studies (CPK)<\/span><\/span><span class=\"EOP SCXW11833712 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span class=\"TextRun SCXW35155272 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW35155272 BCX0\">A statistical review of a critical dimension. The factory measures that dimension repeatedly and\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW35155272 BCX0\">analyzes<\/span><span class=\"NormalTextRun SCXW35155272 BCX0\">\u00a0how reliably the tool holds that dimension within the expected tolerance range. Customers sometimes specify a minimum CPK value they will accept.<\/span><\/span><span class=\"EOP SCXW35155272 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><span class=\"TextRun MacChromeBold SCXW56407075 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW56407075 BCX0\">9. Physical Parts \/ Samples<\/span><\/span><span class=\"EOP SCXW56407075 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span class=\"TextRun SCXW107013810 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW107013810 BCX0\">In\u00a0<\/span><span class=\"NormalTextRun SCXW107013810 BCX0\">almost every<\/span><span class=\"NormalTextRun SCXW107013810 BCX0\">\u00a0case, Marco sends physical samples from the tool so the customer can measure and test them independently. Having samples approved by the customer is a critical\u00a0<\/span><span class=\"NormalTextRun SCXW107013810 BCX0\">component<\/span><span class=\"NormalTextRun SCXW107013810 BCX0\">\u00a0of the PPAP.<\/span><\/span><span class=\"EOP SCXW107013810 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-906 size-large\" src=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/PPAP-Process-Flow-1-1024x765.jpg\" alt=\"\" width=\"800\" height=\"598\" srcset=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/PPAP-Process-Flow-1-1024x765.jpg 1024w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/PPAP-Process-Flow-1-300x224.jpg 300w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/PPAP-Process-Flow-1-768x574.jpg 768w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/PPAP-Process-Flow-1.jpg 1028w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2><span class=\"TextRun MacChromeBold SCXW145043820 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW145043820 BCX0\" data-ccp-parastyle=\"heading 1\">The PPAP Process: Start to Finish<\/span><\/span><span class=\"EOP SCXW145043820 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<p><span class=\"TextRun SCXW62272064 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW62272064 BCX0\">A PPAP follows a defined sequence. The goal throughout is alignment: ensuring everyone from Marco to the factory to the customer is working from the same understanding.<\/span><\/span><span class=\"EOP SCXW62272064 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<ol>\n<li><b><span data-contrast=\"auto\">Quoting and Requirements Gathering.\u00a0<\/span><\/b><span data-contrast=\"auto\">The Marco team collects all the information the customer can provide during the quoting stage. This is fed to internal teams and the production facility to ensure everyone is aligned from the start.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:60}\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Design and Process Review.\u00a0<\/span><\/b><span data-contrast=\"auto\">The factory reviews the requirements and confirms it understands the customer&#8217;s needs and has the capability to meet them.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:60}\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Documentation Development.\u00a0<\/span><\/b><span data-contrast=\"auto\">The factory develops the process flow, control plans, and other required documentation.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:60}\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Tooling Development and Initial Production.\u00a0<\/span><\/b><span data-contrast=\"auto\">The tooling is built and the first batch of parts is produced.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:60}\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Validation.\u00a0<\/span><\/b><span data-contrast=\"auto\">Parts are measured. CPK data is collected. Gauge R&amp;R is conducted. Raw material is\u00a0validated. Parts are tested to customer specifications.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:60}\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Package Assembly and Submission.\u00a0<\/span><\/b><span data-contrast=\"auto\">All documents are compiled into the PPAP package and\u00a0submitted\u00a0to Marco, who reviews it and\u00a0submits\u00a0to the customer.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:60}\">\u00a0<\/span><\/li>\n<li><b><span data-contrast=\"auto\">Customer Approval.\u00a0<\/span><\/b><span data-contrast=\"auto\">The customer reviews the package and returns a signed PSW. This signed PSW is formal approval to begin production.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:60}\">\u00a0<\/span><\/li>\n<\/ol>\n<h2><span class=\"TextRun MacChromeBold SCXW19685514 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW19685514 BCX0\" data-ccp-parastyle=\"heading 1\">PPAP for Molded Parts: Key Considerations<\/span><\/span><span class=\"EOP SCXW19685514 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<p><span class=\"TextRun SCXW5998139 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW5998139 BCX0\">When a PPAP involves molded rubber or elastomeric components, there are specific parameters that are critical to\u00a0<\/span><span class=\"NormalTextRun SCXW5998139 BCX0\">validate<\/span><span class=\"NormalTextRun SCXW5998139 BCX0\">:<\/span><\/span><span class=\"EOP SCXW5998139 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Tooling and material alignment: The tool must be specifically designed for the material being used.\u00a0Different materials\u00a0have different shrink rates. You cannot run\u00a0different materials\u00a0through the same tool and expect consistent results.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Temperature and cure times: These must be precisely set for the specific material to produce the part the customer expects.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Pressure control: Molding pressure must be within spec.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Raw material traceability: If a problem arises with a finished part, there must be a documented path back to the specific raw material batch used.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Cavity identification: For multi-cavity tools, each cavity is\u00a0identified\u00a0so that dimensional issues can be traced to a specific cavity. For example, if only cavities 40 through 50 in a 160-cavity tool are producing out-of-tolerance parts, cavity identification tells the team exactly where to look.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Tooling maintenance: Dimensional stability is tied directly to the condition of the tooling. Parts that are perfectly in spec in the first run may drift over time as the tool wears. Ongoing tooling maintenance is critical, and a tool that has been repeatedly repaired may eventually require replacement, which can trigger a new PPAP.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Flash control: Tool design can minimize flash, and secondary processes such as cryogenic\u00a0deflashing\u00a0can be used to remove any excess material.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"TextRun MacChromeBold SCXW226373666 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW226373666 BCX0\" data-ccp-parastyle=\"heading 1\">Common PPAP Challenges<\/span><\/span><span class=\"EOP SCXW226373666 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<p><span class=\"TextRun SCXW185451043 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW185451043 BCX0\">These are the issues that come up most often. Understanding them helps the sales team ask the right questions early and set\u00a0<\/span><span class=\"NormalTextRun SCXW185451043 BCX0\">accurate<\/span><span class=\"NormalTextRun SCXW185451043 BCX0\">\u00a0expectations with customers.<\/span><\/span><span class=\"EOP SCXW185451043 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"none\">Misalignment Between Customer Requirements and Factory Understanding<\/span><\/b><span data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">This is the most frequent challenge. If the factory does not fully understand what the customer needs, the PPAP will not pass on the first submission. This is why Marco places so much emphasis on extracting complete requirements during the quoting stage.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"none\">Missing or Incorrect Documents<\/span><\/b><span data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">A PPAP package\u00a0contains\u00a0many documents, including calibration data for all measurement equipment used at the factory level. It is easy to miss something. Every piece must be reviewed carefully before submission.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"none\">CPK Values Outside of Customer Acceptance Range<\/span><\/b><span data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">A part can measure in tolerance on every individual measurement and still fail CPK. If the parts show wide variation within the tolerance band, the CPK number may be too low for the customer to accept. This signals a need to go back, remeasure, review the tooling, and bring the dimensions more tightly centered. Parts that are barely acceptable now will only get worse over time.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"none\">Customer-Specific Templates<\/span><\/b><span data-ccp-props=\"{&quot;335559738&quot;:180,&quot;335559739&quot;:60}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">Larger customers sometimes require all PPAP documentation to be completed on their own proprietary templates. This can mean either providing that template to the factory or manually transposing factory-supplied data into the customer format. If the\u00a0customer\u00a0template is more detailed than the standard PPAP document, this requires careful review to make sure all required fields are complete.<\/span><\/p>\n<h2><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-900 size-large\" src=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Boxes-checked-1024x682.png\" alt=\"All the boxes checked\" width=\"800\" height=\"533\" srcset=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Boxes-checked-1024x682.png 1024w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Boxes-checked-300x200.png 300w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Boxes-checked-768x512.png 768w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Boxes-checked.png 1028w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/h2>\n<h2><span class=\"TextRun MacChromeBold SCXW250008010 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW250008010 BCX0\" data-ccp-parastyle=\"heading 1\">PPAP Best Practices and Preparation Checklist<\/span><\/span><span class=\"EOP SCXW250008010 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<p><span class=\"TextRun SCXW103902893 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW103902893 BCX0\">The following practices help keep the PPAP process moving smoothly and reduce the risk of delays or failed submissions:<\/span><\/span><span class=\"EOP SCXW103902893 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:60,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Use a checklist for every submission. A Level 3 PPAP has a standard document checklist. Each of those documents may have its own internal checklist.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Communicate early in the quoting process.\u00a0Ask the customer about any specific requirements before the PPAP begins, not after.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Communicate\u00a0engineering changes\u00a0immediately. If the customer changes the design or engineering requirements mid-process, those changes must be relayed to the production team right away.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Retain master samples. The Marco Florida office\u00a0retains\u00a0master samples from all first articles and new production samples. Both Marco and the customer should have approved master samples on file for reference.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Store documents\u00a0accessibly. PSWs, PPAPs, and all related documents should be organized and retrievable by all relevant parties at any time.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Invest in ongoing training. Understanding the levels, the acronyms, and the process allows the team to have better conversations with customers and factories, and to catch issues before they become problems.<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40,&quot;335559739&quot;:40}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"TextRun MacChromeBold SCXW211930505 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW211930505 BCX0\" data-ccp-parastyle=\"heading 1\">Glossary of Key PPAP Terms<\/span><\/span><span class=\"EOP SCXW211930505 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<p><span class=\"TextRun MacChromeBold SCXW45855304 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW45855304 BCX0\"><strong>PPAP:<\/strong> <span class=\"TextRun SCXW115854736 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW115854736 BCX0\">Production Part Approval Process. A document package that confirms supplier capability and customer alignment before production begins.<\/span><\/span><span class=\"EOP SCXW115854736 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/span><span class=\"EOP SCXW45855304 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<p><strong>PSW:<\/strong> <span class=\"TextRun SCXW163033643 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed GrammarErrorHighlight SCXW163033643 BCX0\">Part<\/span><span class=\"NormalTextRun SCXW163033643 BCX0\">\u00a0Submission Warrant. The core document of every PPAP, signed by both supplier and customer<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW163033643 BCX0\">\u00a0to<\/span><span class=\"NormalTextRun SCXW163033643 BCX0\">\u00a0formally approve the part and process.<\/span><\/span><span class=\"EOP SCXW163033643 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<p><span class=\"TextRun MacChromeBold SCXW45783472 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW45783472 BCX0\"><strong>PFMEA:<\/strong> <span class=\"TextRun SCXW41488007 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW41488007 BCX0\">Process Failure Mode and Effects Analysis. A document that\u00a0<\/span><span class=\"NormalTextRun SCXW41488007 BCX0\">identifies<\/span><span class=\"NormalTextRun SCXW41488007 BCX0\">\u00a0what could go wrong in the production process and defines corrective steps for each scenario.<\/span><\/span><span class=\"EOP SCXW41488007 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/span><\/p>\n<p><span class=\"TextRun MacChromeBold SCXW214709342 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW214709342 BCX0\"><strong>Control Plan:<\/strong> <span class=\"TextRun SCXW260351523 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW260351523 BCX0\">A document outlining every step in the production process, showing how each stage is managed and\u00a0<\/span><span class=\"NormalTextRun SCXW260351523 BCX0\">monitored<\/span><span class=\"NormalTextRun SCXW260351523 BCX0\">.<\/span><\/span><span class=\"EOP SCXW260351523 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/span><\/p>\n<p><span class=\"TextRun MacChromeBold SCXW38262089 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW38262089 BCX0\"><strong>MSA:<\/strong> <span class=\"TextRun SCXW258253101 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW258253101 BCX0\">Measurement System Analysis. An evaluation of the accuracy and reliability of the measurement tools and methods used at the factory.<\/span><\/span><span class=\"EOP SCXW258253101 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/span><\/p>\n<p><span class=\"EOP SCXW38262089 BCX0\" data-ccp-props=\"{}\"><span class=\"TextRun MacChromeBold SCXW268393106 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW268393106 BCX0\"><strong>Gauge R&amp;R:<\/strong> <span class=\"TextRun SCXW2196850 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW2196850 BCX0\">Gauge Repeatability and Reproducibility. A measurement study in which multiple operators measure the same parts with the same tools to evaluate consistency.<\/span><\/span><span class=\"EOP SCXW2196850 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/span><\/span><\/p>\n<p><span class=\"EOP SCXW38262089 BCX0\" data-ccp-props=\"{}\"><span class=\"TextRun MacChromeBold SCXW13084952 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW13084952 BCX0\"><strong>CPK:<\/strong> <span class=\"TextRun SCXW131626286 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW131626286 BCX0\">Process Capability Index. A statistical measure of how reliably a process holds a critical dimension within its tolerance range. A higher CPK indicates more consistent, centered production.<\/span><\/span><span class=\"EOP SCXW131626286 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/span><\/span><\/p>\n<p><span class=\"EOP SCXW38262089 BCX0\" data-ccp-props=\"{}\"><span class=\"TextRun MacChromeBold SCXW115452955 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW115452955 BCX0\"><strong>First Article:<\/strong> <span class=\"TextRun SCXW192373566 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW192373566 BCX0\">The\u00a0<\/span><span class=\"NormalTextRun SCXW192373566 BCX0\">initial<\/span><span class=\"NormalTextRun SCXW192373566 BCX0\">\u00a0parts produced from a new tool,\u00a0<\/span><span class=\"NormalTextRun SCXW192373566 BCX0\">submitted<\/span><span class=\"NormalTextRun SCXW192373566 BCX0\">\u00a0for inspection and approval before full production begins.<\/span><\/span><span class=\"EOP SCXW192373566 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/span><\/span><\/p>\n<p><span class=\"TextRun MacChromeBold SCXW26350507 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW26350507 BCX0\"><strong>Cavity Identification:<\/strong> <span class=\"TextRun SCXW98042100 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW98042100 BCX0\">A system for marking each cavity in a multi-cavity tool so that dimensional issues can be traced to a specific cavity.<\/span><\/span><span class=\"EOP SCXW98042100 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/span><\/p>\n<p><span class=\"TextRun MacChromeBold SCXW201399403 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><strong><span class=\"NormalTextRun SCXW201399403 BCX0\">Cryogenic\u00a0<\/span><\/strong><span class=\"NormalTextRun SpellingErrorV2Themed SCXW201399403 BCX0\"><strong>Deflashing:<\/strong> <span class=\"TextRun SCXW178614779 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW178614779 BCX0\">A secondary process in which parts are treated at low temperatures to remove excess material (flash) from molded rubber components.<\/span><\/span><span class=\"EOP SCXW178614779 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/span><\/span><\/p>\n<h2><span class=\"TextRun MacChromeBold SCXW14601694 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW14601694 BCX0\" data-ccp-parastyle=\"heading 1\">Frequently Asked Questions<\/span><\/span><span class=\"EOP SCXW14601694 BCX0\" data-ccp-props=\"{&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">\u00a0<\/span><\/h2>\n<h4><span class=\"TextRun MacChromeBold SCXW262507457 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW262507457 BCX0\">Does every order require a PPAP?<\/span><\/span><span class=\"EOP SCXW262507457 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/h4>\n<p><span class=\"TextRun SCXW8807053 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW8807053 BCX0\">No. A PPAP is a one-time approval for a specific part, process, and tooling configuration. Once approved, production continues under that approval unless something changes.<\/span><\/span><span class=\"EOP SCXW8807053 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<h4><span class=\"TextRun MacChromeBold SCXW248567061 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW248567061 BCX0\">Who decides if a PPAP is needed?<\/span><\/span><span class=\"EOP SCXW248567061 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/h4>\n<p><span class=\"TextRun SCXW142454422 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW142454422 BCX0\">Always the customer. Marco may suggest one when it would\u00a0<\/span><span class=\"NormalTextRun SCXW142454422 BCX0\">benefit<\/span><span class=\"NormalTextRun SCXW142454422 BCX0\">\u00a0alignment, but the customer makes the final call.<\/span><\/span><span class=\"EOP SCXW142454422 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<h4><span class=\"TextRun MacChromeBold SCXW45549789 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW45549789 BCX0\">Can a customer request a PPAP on a part we have been producing for years?<\/span><\/span><span class=\"EOP SCXW45549789 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/h4>\n<p><span class=\"TextRun SCXW123010489 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW123010489 BCX0\">Yes. Customers can request a new PPAP at any time,\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW123010489 BCX0\">including for<\/span><span class=\"NormalTextRun SCXW123010489 BCX0\">\u00a0legacy parts with long production histories. This often happens when their own requirements\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW123010489 BCX0\">change<\/span><span class=\"NormalTextRun SCXW123010489 BCX0\">\u00a0or they want\u00a0<\/span><span class=\"NormalTextRun SCXW123010489 BCX0\">additional<\/span><span class=\"NormalTextRun SCXW123010489 BCX0\">\u00a0assurance.<\/span><\/span><span class=\"EOP SCXW123010489 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<h4><span class=\"TextRun MacChromeBold SCXW213659446 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW213659446 BCX0\">What level of PPAP does Marco typically provide?<\/span><\/span><span class=\"EOP SCXW213659446 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/h4>\n<p><span class=\"TextRun SCXW246097890 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW246097890 BCX0\">Level 3 is the standard. It covers the full document package and satisfies the requirements of most customers.<\/span><\/span><span class=\"EOP SCXW246097890 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<h4><span class=\"TextRun MacChromeBold SCXW222308483 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW222308483 BCX0\">What does a signed PSW mean?<\/span><\/span><span class=\"EOP SCXW222308483 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/h4>\n<p><span class=\"TextRun SCXW231595708 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW231595708 BCX0\">A signed Part Submission Warrant from the customer is formal approval of the part and production process. It means production can begin.<\/span><\/span><span class=\"EOP SCXW231595708 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<h4><span class=\"TextRun MacChromeBold SCXW108047122 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW108047122 BCX0\">What happens if the PPAP is not approved?<\/span><\/span><span class=\"EOP SCXW108047122 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/h4>\n<p><span class=\"TextRun SCXW223800288 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW223800288 BCX0\">The package is returned with feedback. Marco works with the factory to address the gaps, whether that means re-measuring parts, reviewing tooling, or providing missing documents, and\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed GrammarErrorHighlight SCXW223800288 BCX0\">resubmits<\/span><span class=\"NormalTextRun SCXW223800288 BCX0\">.<\/span><\/span><span class=\"EOP SCXW223800288 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<h4><span class=\"TextRun MacChromeBold SCXW48463145 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW48463145 BCX0\">Can a customer\u00a0<\/span><span class=\"NormalTextRun SCXW48463145 BCX0\">require<\/span><span class=\"NormalTextRun SCXW48463145 BCX0\">\u00a0their own template?<\/span><\/span><span class=\"EOP SCXW48463145 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/h4>\n<p><span class=\"TextRun SCXW239115618 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW239115618 BCX0\">Yes. Some larger customers require all PPAP documentation to be completed\u00a0<\/span><span class=\"NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW239115618 BCX0\">on<\/span><span class=\"NormalTextRun SCXW239115618 BCX0\">\u00a0their specific format. Marco handles the transposing of data into that format when needed.<\/span><\/span><span class=\"EOP SCXW239115618 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<h4><span class=\"TextRun MacChromeBold SCXW212922111 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW212922111 BCX0\">Why does a new tool require a new PPAP?<\/span><\/span><span class=\"EOP SCXW212922111 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/h4>\n<p><span class=\"TextRun SCXW8530517 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW8530517 BCX0\">A new tool has different dimensional characteristics than the old one. Even if it produces the same part, the customer needs assurance that the new tool meets the same standards as the one that was previously approved.<\/span><\/span><span class=\"EOP SCXW8530517 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<h3><a href=\"https:\/\/www.marcorubber.com\/inquiry-quote.htm\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-905 aligncenter\" src=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Request-Quote-CTA-1024x279.png\" alt=\"Request a quote.\" width=\"800\" height=\"218\" srcset=\"https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Request-Quote-CTA-1024x279.png 1024w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Request-Quote-CTA-300x82.png 300w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Request-Quote-CTA-768x209.png 768w, https:\/\/blog.marcorubber.com\/wp-content\/uploads\/2026\/04\/Request-Quote-CTA.png 1028w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/h3>\n<h3>Related Reading<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.marcorubber.com\/o-ring-mil-specs-chart.htm\">Automotive and Aerospace Approved Compounds<\/a><\/li>\n<li><a href=\"https:\/\/www.marcorubber.com\/quality-systems.htm\">Marco&#8217;s Quality Management System<\/a><\/li>\n<li><a href=\"https:\/\/www.youtube.com\/watch?v=JxFJX_NOFi4&amp;list=PLzyHgbSmcGzrskMDRNrZ-35nQlcmW0Nj_&amp;index=10\">What Customer Dedication Really Looks Like at Marco (Video)<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>What Is PPAP?\u00a0 PPAP stands for Production Part Approval Process. It is a document package that provides reassurance to customers that\u00a0Marco Sealing Solutions\u00a0understands their requirements and\u00a0is able to\u00a0meet them.\u00a0\u00a0 PPAP is an industry standard that originated in automotive and aerospace. However, it is a tool that can be used by any end user in any [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":899,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-895","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PPAP: Understanding the Production Part Approval Process<\/title>\n<meta name=\"description\" content=\"Learn about how Marco\u2019s PPAP establishes confidence and alignment between the supplier and the customer before production begins.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.marcorubber.com\/blog\/?p=895\" \/>\n<meta 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