Polyoxymethylene (POM)

Polyoxymethylene (POM), often known by DuPont’s trade name Delrin®, is an engineering thermoplastic recognized for its superior strength, dimensional stability, and low friction. It bridges the gap between metals and plastics - ideal for precision parts that demand high stiffness, fatigue endurance, and wear resistance.

Properties of Polyoxymethylene (POM)

Delrin® 500P NC010 exhibits a well-balanced combination of mechanical strength, toughness, and creep resistance, even in harsh environments.

  • Tensile Strength: ~70 MPa

  • Flexural Modulus: ~2800 MPa

  • Elongation at Break: ~40 %

  • Density: 1.41 g/cm³

  • Impact Strength (notched): ~6 kJ/m²

  • Melting Point: ~175 °C

  • Heat Deflection Temperature: ~120 °C @ 1.8 MPa

  • Coefficient of Friction: ~0.25–0.35

  • Water Absorption (24 hr): 0.2 %

  • Excellent dimensional stability and fatigue endurance

These mechanical and thermal characteristics make Delrin® ideal for replacing machined metal components in functional assemblies.

Pros of Polyoxymethylene (POM)

  • High tensile and flexural strength

  • Excellent fatigue and creep resistance

  • Low friction and superior wear properties

  • Outstanding dimensional stability and machinability

  • High stiffness with self-lubricating behavior

  • Resistant to fuels, solvents, and lubricants

  • Minimal moisture absorption, ensuring consistent dimensions

  • Good electrical insulating characteristics

Cons of Polyoxymethylene (POM)

  • Limited UV and weather resistance without stabilizers

  • Not suitable for prolonged contact with strong acids or oxidizing agents

  • Lower impact strength compared with polycarbonate or nylon

  • Sensitive to thermal degradation at high melt temperatures

Applications of Polyoxymethylene (POM)

Delrin® 500P NC010 is widely used for high-precision, load-bearing parts where low friction and dimensional control are critical.

  • Automotive: Fuel system parts, gears, door locks, and seatbelt components

  • Industrial Equipment: Bearings, bushings, cams, and pump housings

  • Consumer Electronics: Mechanical switches, printer gears, and moving connectors

  • Medical & Healthcare: Drug-delivery mechanisms, clips, and handles (non-implantable)

  • Aerospace: Interior fittings, hinge components, and actuator housings

  • Consumer Goods: Fasteners, zippers, and precision mechanical assemblies

At Amuse3D, our injection-moulding workflows are optimized to capture Delrin’s dimensional precision while maintaining cost-efficient production scalability.

Machining & Finishing Options

Our injection moulding setup for Delrin® 500P NC010 ensures consistent mechanical performance and surface quality across production batches.

  • Controlled melt temperature (190 – 210 °C) and mould temperature (80 – 100 °C) for optimal crystallinity

  • Precision gate and venting design to avoid voids or sink marks

  • Available finishes: gloss, matte, or textured surfaces

  • Colour additives and wear-resistant grades available

  • Dimensional validation and in-process quality inspection

Every part is produced with tight process control combining Amuse3D’s tooling accuracy and material know-how to achieve high-performance components.

Comparison to Polyoxymethylene Alternatives

  • Versus Nylon 6/6: POM absorbs less moisture, giving better dimensional stability and consistent mechanical properties in humid conditions.

  • Versus Polypropylene: POM provides superior stiffness, fatigue resistance, and creep strength, making it ideal for structural and moving parts.

For applications where precision, low friction, and long-term wear life matter, Delrin® 500P NC010 remains a preferred engineering choice. At Amuse3D, we specialize in Delrin® 500P NC010, a medium-viscosity acetal homopolymer engineered specifically for high-precision injection-moulded components. Our team combines deep material understanding with process expertise to deliver repeatable, dimensionally accurate, and durable parts for industrial and engineering applications.

Conclusion

Delrin® 500P NC010 exemplifies the performance that modern engineering demands reliable, strong, and dimensionally stable under stress. At Amuse3D, we turn this material’s properties into production-ready parts through precision injection moulding, supporting industries from automotive to industrial automation.

Explore our Injection Moulding Services to learn how we help teams scale with engineering polymers, or Get an Instant Quote to start your next POM project. For more details: check this POM datasheet

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