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Acetals
Material Description
Acetal and Delrin® are both engineering plastics more properly known as polyoxymethylene (POM) and are members of the thermoplastics family. POM is available in 2 different resins: Acetal Copolymer (POM-C / Ertacetal C®) and Acetal Homopolymer (POM-H / Ertacetal H®). The latter is commonly referred to as Delrin®.
Material Characteristics
- Excellent machinability
- Very good dimensional stability (low water absorption)
- High mechanical strength, stiffness and hardness
- Good sliding properties and wear resistance
- High impact strength, even at low temperatures
- Excellent resilience
- Good creep resistance
- Good electrical insulating and dielectric properties
Typical Applications
- Dimensionally stable precision parts
- Gear wheels with small modulus
- Cams
- Heavily loaded bearings and rollers
- Bearings and gears with small clearances
- Valve seats
- Snapfit assemblies
- Electrically insulating components
