Le POM présente une excellente résistance aux solvants organiques, huiles, graisses et carburants. Sensible aux acides forts et bases concentrées (hydrolyse). Incompatible avec les oxydants forts. Bonne tenue en milieu humide et dans l'eau chaude.
Acetal POM (Polyoxymethacrylate) Copolymer
POM-C
Acetal POM (Polyoxyméthacrylate) Copolymère
Acetal (POM)
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Injection Moulding
Transparent Food Contact Recycled Biobased flame-retardant UV resistant
✓ This material meets the criteria ~ Specialized grades may meet this criteria
Quality Scores
Mechanics
Thermal
Chemical
UV ageing
Injection moulding difficulty
Recycling
Performance profile
Mechanical properties
| Density | 1.40 to 1.41 g/cm³ ISO 1183 |
|---|---|
| Charpy notched impact | 1.5 to 11 kJ/m2 |
| Flexural modulus | 1990 to 2970 MPa ISO 178 |
| Flexural resistance | 90 MPa |
| Tensile modulus | 2040 to 3470 MPa ISO 527-1 |
| Tensile resistance | 33.8 to 66.8 MPa ISO 527-1, -2, Break |
| Tensile strain | 1.2 to 71 % ISO 527-1, -2, Break |
Chemical resistance and characteristics
Chemical resistance
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Recommended applications
- Electrical/Electronic Applications
- Automotive Applications
- Gears
- General purpose
- Technical parts
- Industrial applications
- Enclosures
- Consumer applications
- Bearings
- Automotive electronics
Frequently asked questions
Injection moulding at 185–215 °C, mould temperature 80–100 °C. Highly susceptible to thermal degradation (release of formaldehyde above 230 °C). High shrinkage (1.8–2.5 %) → appropriate mould design is essential. No pre-drying required if stored correctly.
POM is a recyclable thermoplastic. Recycling is limited by its sensitivity to thermal degradation. Depolymerisation allows for the recovery of formaldehyde. Recycled grades exist for non-critical applications.
POM-FDA grades are approved for food contact (cold and hot water). Used in taps and kitchen equipment. Check the specific grade with the supplier.
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