Application area: General industry Life-science/MedTech Food industry

General facts

Polyoxymethylene, copolymer

Shortening: POM

Color: White, opaque

Coloring options: Almost unlimited

Common uses: Impellers, plain bearings, fine mechanical details, etc.


  • Excellent combination of toughness, stiffness, fatigue strength and creep resistance (spring material).
  • Good moisture and chemical resistance.
  • Useful in a wide temperature range.
  • Resistant to thermal and oxidative degradation.
  • Good resistance to stress relaxation.
  • Good friction and wear properties.
  • Low gas and vapor permeability.
  • Tight tolerances and good dimensional stability of finished details.
  • Qualities with different fillers and additives are available to suit different purposes.


  • Attacked by strong mineral acids (pH below 4).
  • Degraded by UV radiation in unpigmented condition.
  • Approved for contact with food.
  • Hard to glue with itself or other materials.
  • Should not be used in electrical applications above + 70 ° C.
  • Elongation should not exceed 2-4%.
  • High combustion rate, dangerous gas is formed.
  • Sensitive to criminal instructions.
  • Homopolymer should not be used in alkaline environments (pH above 9).

Specific properties of POM-C plastic

POM-C material, otherwise known as Acetal Copolymer, is higher than POM-H in chemical resistance and has a lower melting point. POM-C is an engineered plastic with highly crystalline resins that are strong, rigid, and have a low coefficient of friction.

The creep resistance, which is recommended for applications where dimensional stability is of importance, is another unique feature that makes the POM-C plastic stand out from metals and other plastics.