Delrin® (Acetal / POM)
Delrin® acetal is an engineering thermoplastic known for its high stiffness, low friction, and excellent dimensional stability. It offers good wear resistance and machinability, making it a cost-effective choice for precision mechanical components.
Delrin® components are commonly machined from extruded shapes or injection molded for high-volume applications.
Key Performance Characteristics
High stiffness and strength
Low friction and good wear resistance
Excellent dimensional stability
Low moisture absorption
Good machinability
Typical Components Made with Delrin®
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Bushings
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Slide Pads
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Back-Up Rings
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Valve Seats
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Gears
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Sprockets
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Guides
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Locators
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Spacers
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Thrust Washers
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Manifolds
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Nozzles
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Insulators
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Fixtures
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Pistons
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Rollers
Industry Applications & Why Delrin® Works
Aerospace & Defense
Precision aerospace components require materials with tight tolerances and good mechanical strength.
Delrin® is used in gears, bushings, and structural components where repeatability and low friction are important.
Space Systems
Space mechanisms benefit from lightweight, dimensionally stable materials.
Delrin® supports precision components where controlled motion and stability are required.
Semiconductor Capital Equipment
Semiconductor tools require consistent, repeatable mechanical performance.
Delrin® is used in fixtures, gears, and mechanical assemblies where machinability and accuracy are critical.
Medical & Life Sciences
Medical equipment demands precise, repeatable components with good mechanical strength and low friction.
Delrin® is commonly used for gears, housings, fixtures, and moving components within medical devices and lab equipment. Its dimensional stability and machinability support tight tolerances in high-volume medical manufacturing.
Downloads — Technical Resources
Download detailed PDF datasheets for each Delrin® formulation:
DO NOT DELETE
Common Formulations
Homopolymer Acetal (Delrin®) Unfilled – Higher strength and rigidity
Copolymer Acetal – Unfilled, better chemical resistance, no centerline porosity
Glass Filled – Homopolymer with 20% Glass Fiber reinforcement
Delrin® AF – Homopolymer with PTFE Fiber reinforcement
Delrin® AF DE588 – Homopolymer with PTFE Fiber reinforcement for Defense applications
Semitron® Esd 225 – Electrostatic Dissipative
Tecaform® AH ELS – Electro Conductive
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