Delrin (POM) Injection Molding

Delrin is a high strength material with excellent wear resistance

polishing an injection mold

Injection-molded Delrin (POM) offers high-tensile strength, low-friction and high-wear resistance, creep and warp resistance, and overall durability and toughness. It's a high-performance material for parts that will be in harsh environments or experience heavy wear.

The Main Benefits of Delrin (POM):
  • Dimensional stability
  • Superior impact and creep resistance
  • High fatigue endurance
  • High strength and stiffness properties
  • Chemical resistance to fuels and solvents
  • Low moisture absorption
  • Good wear and abrasion properties
  • Natural grade is FDA, NSF, and USDA compliant

Delrin Material Properties

  Tensile Modulus
ISO 527-2
Tensile Strain (Yield)
ISO 527-2
Rockwell Hardness
ISO 2039-2
Heat Deflection
ISO 72-A/B
Data Sheet
Delrin 500P 3,100 MPa 17%

M-Scale: 90
R-Scale: 120

66 psi, Unannealed: 160 C
264 psi, Annealed: 110 C

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Uses for Molded Delrin Parts

The robust mechanical properties of Delrin makes it a good material choice for parts that are in moist or wet environments and high wear applications. In many cases, it can be used as an alternative to metal.

Typical parts include:

  • Pump and valve components
  • Gears
  • Bearings
  • Bushings
  • Fittings

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