POM AST

POM – Polyacetal

POM AST

POM AST is an anti-static polyacetal (POM-C). In terms of its technical properties, the material is an ideal choice for electronics applications. It has a surface resistivity of 10^10 Ω and an electrical resistivity of 10^9 Ω. POM-C AS does not contain any carbon, which makes it suitable for use in clean-room applications with strict hygiene requirements. We deliver POM AST as plastic sheets and rods.

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Physical properties
  Value Unit Test method
Specific gravity 1.35 g/cm3 DIN EN ISO 1183
Average molecular mass N/A
Water absorption, 24/96 h (23 °C) N/A
Weather-resistance poor
Combustibility HB UL 94 DIN EN ISO 527-2
Food safety no
Mechanical properties
  Value Unit Test method
Modulus of elasticity 1380 MPa DIN EN ISO 527-2
Tensile strength 40 MPa DIN EN ISO 527-2
Elongation at break N/A
Tensile strength at break 72 % DIN EN ISO 527-2
Flexural modulus N/A
Flexural strength N/A
Compressive modulus N/A
Compressive strength, 1%/2% N/A
Impact strength (Charpy) does not break kJ/m2 DIN EN ISO 179-1eU
Notch impact strength (Charpy) N/A
Notch impact strength (Izod) – kJ/m2 DIN EN ISO 180/2A
Toughness (ball pressure) N/A
Toughness (Shore D) 74 Sh D DIN EN ISO 868
Wear-resistance N/A
Coefficient of friction (against steel) N/A
Thermal properties
  Value Unit Test method
Glass-transition temperature N/A
Melting point N/A
Operating temperature (instantaneous) N/A
Operating temperature (continuous) N/A
Operating temperature (minimum) N/A
Thermal expansion coefficient, 23–60 °C N/A
Thermal expansion coefficient, 23–100 °C N/A
Specific heat capacity N/A
Thermal conductivity N/A
Electrical properties
  Value Unit Test method
Surface resistivity 109–1010 Ω DIN IEC 60093
Resistivity 109–1010 Ω×cm DIN IEC 60093
Dielectric strength N/A
CTI value N/A
Optical properties
  Value Unit Test method
Light transmittance N/A
Refractive index N/A
Optical errors N/A
Abrasion-resistance, 100 rotations with 500 g N/A
Delivery selection plastic sheets, plastic rods
Specific gravity 1.35 g/cm3
Service temperature N/A … N/A °C
Price category €€€ (€26–50/kg)

Special properties

  • surface resistance of 10^10 Ω
  • resistivity of 10^9 Ω
  • excellent mechanical strength
  • good dimensional accuracy
  • excellent machinability
  • suitability for the food industry

Applications

electronics-industry applications, semiconductor-industry applications, mining-industry applications, mobile-phone-industry applications

Standard colours

natural

Premade pieces

enquire

Commonly known brands

GEHR POM-ESD®, SUSTARIN® C ESD 90, Semitron® ESd 225, TECAFORM® AH SD, ZELLAMID® 900 AS