POM Compounds

POM, also known as acetal, polyacetal and polyformaldehyde, is an engineering thermoplastic used in precision parts that require high rigidity, low friction and excellent dimensional stability.

As a robust, solvent- and flame-resistant plastic, it is used in gears, housings, window guides, speaker grilles, zippers, lighters, aerosol valves, seat belts and furniture components.

POM can be divided into two groups:

Homopolymer POM
Copolymer POM

If polymerized directly by starting from methanol, formaldehyde and POM homopolymer (e.g. Delrin) are formed. For the POM copolymer, formaldehyde is converted to trioxane and this is polymerized together with a co-monomer into a POM copolymer (e.g. Hostaform).

POM homopolymer has a higher crystallinity compared to POM copolymer.

On the other hand, the chemical resistance of the copolymer is higher. This leads to a higher rigidity for the homopolymer and lower thermal degradation for the POM copolymer during production and in the field.

Features:

High rigidity
Low wear
Good flexibility
Low water absorption
The most common forming processes for polyacetal are injection molding and extrusion (sheets and rods), but blow molding and rotational molding are also possible.
POM is mainly used in technical parts where the specified mechanical properties offer an advantage over other plastics.

Compounds:

Unreinforced
Glass Fiber Reinforced
Glass Bead Reinforced
Teflon
Areas of Use:
Gears
Springs
Chains
Screws
Handles
Zippers
Clips
Fuel pumps
Breathing Apparatus
Furniture slides
Gears
Springs
Chains
Screws
Handles
Zippers
Clips
Fuel pumps
Breathing Apparatus
Furniture slides