Polyoxymethylene

Polyoxymethylene

POM

Two Main POM Grades: Homopolymer POM & Copolymer POM

1. Homopolymer POM Produced solely from formaldehyde polymerization, homopolymer POM delivers higher hardness, tensile strength and rigidity, alongside superior wear resistance. Its melting point is relatively high, while thermal stability and alkali resistance are moderate. Suitable applications: High-precision gears, bearings, fasteners, small mechanical springs, lightweight structural parts requiring ultra-high rigidity.

2. Copolymer POM Co-polymerized with a small amount of comonomer, copolymer POM gains enhanced thermal stability, hydrolysis resistance and chemical resistance against alkalis. It offers broader processing windows and better long-term thermal aging performance, with slightly lower rigidity than homopolymer POM. Suitable applications: Automotive functional components, water pump parts, plumbing valve fittings, electronic precision moving parts, outdoor machinery accessories exposed to humidity.

POM covers a wide range of precision industrial scenarios. In mechanical manufacturing, it manufactures gears, sliding bearings, worm wheels and transmission fasteners. In the automotive sector, it is adopted for fuel system parts, door lock assemblies and small chassis moving components. It is also extensively used in electronic hardware, household appliance moving structures, plumbing valve parts, toy transmission structures and medical precision disposable mechanical fittings. Furthermore, recyclable POM materials are available to cater to global low-carbon and sustainable manufacturing demands.