What is polyoxymethylene (POM)?

Polyoxymethylenes are highly crystalline thermoplastics with a high density, strength, hardness and rigidity. The polymers also have good wear resistance and good sliding properties. However, their formability and impact strength are weaker than those of other plastics. They also have good electrical insulation properties when absorbing moisture. They can be used in the temperature range from – 40 to + 100 °C and are resistant to most chemicals (organic and hydrolysis). POMs are not resistant to oxidizing agents and strong acids. It has good ageing behavior. POM is also available reinforced with glass fibers (POM GF), which improves some mechanical properties. Applications range from gear wheels, spring elements and chains to zippers and lighter housings.