Custom Plastic Parts

Get Custom Plastic Parts in the Materials You Need

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Get Custom Plastic Parts in the Materials You Need

Marco Rubber & Plastics offers a broad range of custom plastic parts for specifically engineered solutions produced at the highest quality and with exacting standards. With our diversified production network, Marco Rubber & Plastics is connected with ISO 9001:2015 certified manufacturers of custom plastic components to provide cost-effective, injection-molded answers to meet and exceed the needs and standards of our customers. We understand that providing consistent quality and adhering to delivery schedules is critical for your manufacturing needs, and we’ll ensure both with high-volume production runs and an efficient process. Using an injection molding process, our custom plastic parts providers can keep the raw materials stable and in a fluid state before the pressure and/or heat is applied for final curing. Excessive flash and final processing are minimized due to tool design, making this method efficient and the most cost-effective.

Versatility in Material Selection

Plastic material selection is an essential step in the process, and one that Marco Rubber & Plastics will help guide you through with our team of knowledgeable engineers. Since 1980, we’ve offered more than catalog or commodity solutions when it comes to custom plastic parts; we’ve provided decades of application-specific material expertise backed by industry-leading customer satisfaction and audit scores, in-depth technical material and industry reference guides, and the world’s most extensive inventory and production network. With many different plastic materials available, with differing characteristics and strengths, you’ll want experts to help guide you through the process. We have the learned expertise of working with clients to determine the specifics of their application and then matching that to a wide range of possible materials to settle on the ideal combination. Here’s a look at some of the more common plastics we use in fulfilling custom parts requests.

Low-Density Polyethylene — The most flexible version of polyethylene, LDPE is widely used in packaging and provides excellent moisture resistance with high-impact strength.

High-Density Polyethylene — HDPE trades flexibility for a higher strength-to-weight density ratio and better resistance to a variety of solvents.

ABS — Acrylonitrile Butadiene Styrene is a tough, impact-resistant plastic used for 3D manufacturing and the fabrication of OEM parts.

Nylon — Versatile and one of the more commonly used plastics on this list, this material provides high tensile strength and elasticity. Nylon is widely used in automotive components and machine parts.

PPSU — Polyphenylsulfone is used when high heat and/or chemical resistance is a necessary consideration.

Acetal & Delrin — This plastic has low friction and abrasion-resistant properties, making it a common choice for the fabrication of gears, electrical components and automotive components.

Polycarbonate — Naturally transparent, this plastic has excellent optical qualities, and can transmit light and withstand impact. This material is often used for lighting fixtures, eyeglasses, and medical devices.

Engineering a New Part and have Questions?
Speak with an engineer today at 603-468-3600 or

The Addition of Additives

One of the strengths of custom plastic parts is the ability to further specialize the material through the use of additives, which can imbue additional properties to the material to enhance the execution of the material in certain applications. Nearly any scenario or circumstance can be accounted for through the use of additives, which further illustrates the versatility of plastic as a material. Again, consulting with our team of engineers will give you the best opportunity to identify potential solutions here to craft ideal solutions to your specific needs.

The additives offered by Marco Rubber & Plastics include:

  • Fillers (metal, talc, glass)
  • Colorants
  • Plasticizers (modifies the melt flow)
  • Stabilizers (to inhibit degradation)
  • Antioxidants
  • Flame retardants
  • Ultraviolet (UV) Light Absorbers
  • Antistatic Agents
  • Lubricants
  • Reinforcements (Carbon fiber, Fiberglass, Kevlar)
Engineering a New Part and have Questions?
Speak with an engineer today at 603-468-3600 or

Experience the Marco Difference with Custom Plastic Parts

When you need customized plastic components, available in a wide array of material options, Marco Rubber & Plastics will deliver the precision and expertise needed. With a commitment to production quality and a reliable delivery schedule, we will be a trusted partner in your acquisition of custom plastic parts to reach your production goals. Marco Rubber & Plastics is a leading supplier of o-rings and seals in any size, material, durometer, and performance requirements. We offer the most diverse material options in the market, and custom material development is typically available at no cost. Our team of expert engineers will work with you to craft on-spec parts and specialized solutions to suit your particular needs. We provide that same level of experience and expertise to custom plastic parts as well.

Contact us today to learn more about our custom plastic parts, request a quote, or discuss your specific application needs with an engineer.