POM represents the most crystalline structure of all polymers.
- Excellent bearing properties
- POM has good fatigue and creep-resistance. POM is usually selected as the material for plastic springs, although any prolonged tension of the spring can not be recommended.
- Retains its properties well in temperatures significantly below zero.
- Excellent chemical resistance
Why not choose?
- High shrinkage easily leads to warpage and dimension inaccuracy.
- Due to small friction co-efficient, POM can be slippery to touch which can be a problem if you intend to use it for a handle.
- Wear resistance is limited, although it is commonly mentioned as a strength of the material.
- The surface appearance of POM components is typically oily.
- POM is flammable; fire-retardant grades are difficult to find.
- Petrol tank lid in a car
- Backpack snap harnesses
- Plastic zippers
- Pulley wheels
POM is available as a homopolymer and copolymer. The difference between the two is small. It is explained in this article by Hardie Polymers