Delrin (POM / Acetal)

Delrin (POM) is a high-performance acetal homopolymer with excellent dimensional stability, low friction, and high stiffness. It is the workhorse engineering plastic for precision mechanical components that require low friction and tight tolerances.

Machinability

85/100

Tolerance

±0.02 mm

Category

Engineering Plastics

Material Properties

PropertyValue
Tensile Strength70 MPa (10.2 ksi)
Yield Strength65 MPa (9.4 ksi)
HardnessRockwell M80
Density1.42 g/cm³
Machinability Rating85/100
Thermal Conductivity0.31 W/m·K
Melting Point175 °C
Tolerance±0.02 mm

Common Grades

Delrin 150Delrin 500Delrin AFPOM-CPOM-H

Advantages

  • Excellent dimensional stability
  • Low friction / self-lubricating
  • High stiffness
  • FDA-compliant grades available
  • Cost-effective

Limitations

  • Limited temperature resistance (100°C max)
  • Not suitable for acids
  • Flammable
  • Difficult to bond or paint

Common Applications

Gears

Bearings

Bushings

Rollers

Clips

Conveyor parts

Pump impellers

Industries Served

AutomotiveConsumer ProductsIndustrial MachineryFood Processing

Available Surface Finishes

As-MachinedPolishedBead Blast

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