Copolymer

The copolymer grade is the ideal combination of strength, stiffness and wear resistance. It absorbs very little moisture, is easily machinable and is genuinely porosity-free, making it the preferred grade for food contact and medical applications. The product exhibits an elevated resistance to hydrolysis, strong alkalis and thermal-oxidative degradation when compared to acetal homopolymer.

Key features

  • High mechanical strength and rigidity
  • High impact strength and creep resistance
  • Excellent dimensional stability and machinability
  • Low moisture absorption
  • Good electrical insulating and dielectric properties
  • No centreline porosity in copolymer grades
  • Suitable for food contact

Properties

Property Unit of measure Value
Tensile StrengthMpa70
Elongation at Break%>15
Modulus of ElasticityMPa2700
Impact Strengthkj/m²7.20
Compressive StrengthMPa110
Shear StrengthMPa
Shore HardnessD Scale85
Co-efficient of Frictionμ0.25
Water Absorption @ 23 Deg C%0.90
Service Temperature IntermittentᵒC140
Service Temperature ContinuousᵒC90
Melting pointᵒC170
Thermal ConductivityW/m.ᵒC0.31
Dielectric StrengthkV/mm16.5
Volume ResistivityΩ.cm10¹³
Surface ResistivityΩ10¹³
Arc ResistanceSec