Acetal resins (polyoxymethylene or POM) are engineering thermoplastics based on formaldehyde polymerization technology. Acetal resins have high tensile strength, stiffness, resilience, fatigue endurance, a low coefficient of friction against metals, acetals and other plastics and moderate toughness. The Acetal sheet offered at ePlastics® has high resistance to organic solvents, excellent dimensional stability, a low coefficient of friction and outstanding abrasion resistance among thermoplastics.
ePlastics® offers Acetal Delrin in black and natural colors and carries the material in the warehouse for fast shipping. Natural and black Acetal rods are also available here.
Acetals’ resistance to creep is excellent. Moisture, lubricants and solvents including gasoline and gasohol have little effect on this property, which is important in parts incorporating self-threading screws or interference fits. Good electrical properties qualify these materials for electrical applications requiring long-term stability. Acetal copolymers retain much of their toughness through a broad temperature range and are among the most creepresistant of the crystalline thermoplastics. A low moisture absorption characteristic permits molded parts to serve reliably in environments involving humidity variations.
- Excellent dimensional stability
- Continuous use temperature of 180°F
- Porosity free
- Consistent properties in wet or moist environments
- Very low moisture absorption
- Excellent electrical properties
- Easy to machine to close tolerances
- Natural and Black are FDA & USDA compliant
- Bushings and bearings
- Rollers and gears
- Valves and manifolds
- Scraper blades
- Wear strips and pads
- Jigs and fixtures
- Electrical components
- Parts which operate in water between 60 to 90C
- More applications here.
- ASTM POM 0211, D6778
- FDA21 CFR 177.2470
- USDA compliant
- ASTM POM 211, D 6100