Custom PTFE Seal and High Performance Plastics

  • Custom machined PTFE and High performance Plastics like UHMW PE, PEEK, Polyimide…
  • PTFE O-Rings, PTFE Seals, PTFE Gaskets, PTFE Lip Seals, PTFE Guides, PTFE Bushings, PTFE Spacers…
  • View our high performance plastic selection reference guide.

HIGH PERFORMANCE PLASTICS

  UHWM-PE PTFE
(PTFE)
PEEK
(Arlon, Ketron®)
POLYIMIDE
(Vespel®, Altymid®)
Manufacturing
Method
Machined Parts Machined Parts Machined Parts
& Stock Shapes
Machined Parts
& Stock Shapes
Available Sizes .020" to 12.00" Dia. .020 to 60.00" Dia. .020" to 12.00" Dia. .020" to 12.00" Dia.
Relative Cost
Typical Lead Time 3-5 weeks 4-6 weeks 6-8 weeks 6-10 weeks
Applications
  • Bushings
  • Guides
  • Machined custom parts
  • Pads
  • Plugs
  • Rollers
  • Seals
  • Spacers
  • Supports
  • U-cups
  • Washers
  • Wear rings
  • Seals
  • Back-up rings
  • Custom machined parts
  • O-rings
  • Seals
  • Skived tape
  • Metal Spring Energized Seals
  • Valve seats
  • Washers
  • Back-up rings
  • Bearings
  • Blocks
  • Bushings
  • Guides
  • Rollers and wheels
  • Plugs
  • Seals
  • Spacers
  • Supports
  • Valve seats
  • Washers
  • Wear rings
  • And many more custom parts
  • Custom machined parts
  • Clamp rings
  • Ferrules
  • Gears
  • Rings
  • Washers

COMPATIBILITY

Materials & Tradenames: UHWM-PE PTFE
(PTFE)
PEEK
(Arlon, Ketron®)
POLYIMIDE
(Vespel®, Altymid®)
Acids Weak      
Chlorinated Solvents  
Alkalies Weak  
Alkalies Strong    
Autoclavable    
High Strength      
UV Stable      
Higher Impact Strength      
Bearing/Low Wear
High Purity    
Wafer Processing    
Low Outgassing  
Cryogenic Material (-238° F)  
High Temp. (>300° F)  
Cold Temp. (-0° F)  

UHMW-PE (Ultra High Molecular Weight Polyethylene)

UHMW-PE is lightweight plastic with excellent overall physical properties and outstanding abrasion resistance.

Features: Good chemical compatibility, meets FDA, USDA and 3-A dairy requirements, excellent abrasion resistance, impact resistant, moisture resistant and good cryogenic capabilities -280° F to + 175° F.
Applications: Seals, bushings, guides, pads, plugs, rollers, spacers, u-cups, wear rings, washers

Compound Temperature Range (°F) Specific Gravity Tensile Strength (psi) Elongation % Wear Factor
(K)x10-10
in3-min/lb-ft-hr
UHMW-PE -280 to 175° F 0.93 2,900 300 30

PTFE (Polytetrafluoroethylene), PTFE, Avalon®, Hostaflon®

PTFE is the most widely used fluoropolymer material with an almost universal chemical compatibility and wide range of temperature capabilities. PTFE offers unique properties which make it suitable for a wide range of applications.

Features: Best chemical compatibility, low friction, meets FDA, USDA and 3-A dairy requirements, excellent moisture resistant and good cryogenic capabilities down to -350° F.
Applications: Seals, bushings, back-ups, guides, pads, plugs, rollers, spacers, o-rings, wear rings, washers.

Compound Temperature Range (°F) Specific Gravity Tensile Strength (psi) Elongation % Wear Factor
(K)x10-10
in3-min/lb-ft-hr
Virgin PTFE -350 to 550° F 2.16 3,500 300 2,500
Pigmented PTFE -268 to 550° F 2.16 3,500 300 150
Graphite Filled PTFE -268 to 550° F 2.05 2,000 180 6
Carbon Filled PTFE -268 to 550° F 2.08 2,000 200 8
Polymer Filled PTFE -268 to 550° F 2.01 3,000 250 2
Mineral Filled PTFE -268 to 550° F 2.24 2,500 250 2

PEEK (Polyetheretherketone) Arlon®

PEEK is a high performance, high temperature engineered thermoplastic resistant to a wide range of environments.

Features: Good chemical compatibility, high strength, good hot water and steam resistance, tough, good impact resistance.
Applications: Seals, bushings, back-ups, guides, pads, plugs, rollers, spacers, wear rings, washers

Compound Temperature Range (°F) Specific Gravity Tensile Strength (psi) Elongation % Wear Factor
(K)x10-10
in3-min/lb-ft-hr
Virgin PEEK -100 to 500° F 1.32 12,000 30 200
Glass Filled PEEK -100 to 500° F 1.45 18,000 2.5 50
Carbon Filled PEEK -100 to 500° F 1.46 20,000 2.2 24

POLYIMIDE Vespel® Altymid®

Polyimide polymers offer a broad combination of temperature and chemical resistance, as well as mechanical toughness and excellent lubricity for a wide range of applications.

Features: Good chemical compatibility, high Temperature resistance (up to 600° F), high strength, high compressive strength, high stiffness.
Applications: Bushings, guides, pads, plugs, rollers, spacers, wear rings, washers, plasma tips.

Compound Temperature Range (°F) Specific Gravity Tensile Strength (psi) Elongation % Wear Factor
(K)x10-10
in3-min/lb-ft-hr
Unfilled Polyimide -100 to 600° F 1.35 10,000 4 12
Graphite Filled
Polyimide
-100 to 600° F 1.4 9,000 4 8


PTFE, Vespel® are registered trade names of Dupont
Hostaflon® is a registered trade name of Dyneon
Altymid®, Arlon®, Avalon® are registered trade names of Greene, Tweed & Co.


Back to the Semiconductor Page 

Call 603-468-3600

Marco Rubber & Plastics
PO Box 1150
Seabrook, NH 03874

Contact
Home