Acetal Copolymer Static Dissipative


What is the Material: Acetal Copolymer Static Dissipative is a semi-crystalline material and it is a modified acetal copolymer filled with an anti-static additive.

Key Material Features: This material is beneficial in applications requiring reduced buildup of electric charges, while maintaining many properties of other acetal copolymer materials including high mechanical strength, rigidity, wear resistance, low moisture absorption, and dimensional stability.

Other Considerations: The addition of the anti-static additive can impact the strength and hardness of the material, depending on the application. Nylon materials typically perform better than acetal materials in abrasive wear applications.


Property Value Typical ASTM Test
Chemical Designation (POM-C) Polyoxymethylene Copolymer
Trade Names (®, ™) Sustarin C, Semitrom, Tecaform, Unital, Pomalux, ZL
Filler Antistatic Agent
Color Natural
Density (g/cm^3) 1.33 D 792


Property Value Typical ASTM Test
Modulus of Elasticity (Tensile Test) (psi) 189000 D 638
Tensile Strength at Yield (psi) 5000 D 638
Elongation at Yield (%) 23 D 638
Elongation at Break (%) 20 D 638
Flexural Strength (psi) 7000 D 790
Modulus of Elasticity (Flexural Test) (psi) 210000 D 790
Compression Strength: 10% Strain (psi) 6700 D 695
Compression Modulus (psi) 150000 D 695
Impact Strength (Izod) (ft-lbs/in) 1.6 D 256
Coefficient of Friction (Kinetic, 40 psi, 50 fpm) 0.18 D 3702
Coefficient of Friction (Static) 0.11 D 3702


Property Value Typical ASTM Test
Melting Point (°F) 329 D 3418
Deflection Temperature (°F) (264 psi) 190 D 648
Service Temperature Continuous (°F) 212
Service Temperature Intermittent (°F) 284
Thermal Expansion (CLTE) (in/in/°F) 1.60E-5 D 696


Property Value Typical ASTM Test
Specific Surface Resistance (Ω/square) 1.00E10 D 257
Dielectric Strength (V/mil) 500 D 149


Property Value Typical ASTM Test
Moisture Absorption (%) (24 Hours) 1.4 D 570
Flammability HB
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.