@spot_material
hello@spotmaterial.com
Polyoxymethylene (POM)
2.5-3.5 usd/kg
Polyoxymethylene (POM), also known as acetal, is a high-performance engineering thermoplastic used for its combination of mechanical properties combined with low surface friction and excellent dimensional stability. Available in both homopolymer (POM-H) and copolymer (POM-C) forms, POM is widely used in precision parts that require high stiffness, low wear, and consistent performance over a wide range of temperatures. Its natural lubricity and high fatigue resistance make it ideal for gears, bearings, bushings, and other moving components, while its low moisture absorption ensures reliable performance in humid environments.
POM’s versatility is further enhanced by the availability of reinforced grades, such as glass fibre (GF) and carbon fibre (CF) composites, which enhance stiffness, strength, and heat resistance. This allows POM materials to be tailored for demanding structural applications in automotive, electronics, consumer goods, and industrial machinery. While POM-H offers slightly higher mechanical properties, POM-C stands out for its superior resistance to hydrolysis and chemicals, making it the preferred choice for applications involving water or aggressive substances.
Log in to search similar materials
Log in to find better material
Sustainability concerns
Non-renewable ingredients
Raw material generates polluting by-products
Low circularity potential
Microplastics
Carbon fibre reinforcement provides even higher stiffness, strength, and dimensional stability than glass fibre, along with lower density and superior reduction in thermal expansion. These grades are ideal for high-performance, lightweight structural components that require exceptional dimensional accuracy, minimal thermal expansion, and high mechanical strength, such as precision gears, high-end automotive and aerospace components, and parts exposed to fluctuating temperatures. POM-CF grades also offer improved electrical conductivity (compared to unfilled or glass-filled grades), making them suitable for some electronics and ESD-sensitive applications.
Similar to glass fibre, carbon fibre reinforcement can increase the impact strength of POM, especially when longer fibres are used. However, the improvement depends on fibre-matrix adhesion and fibre geometry. Carbon fibre typically provides even greater increases in stiffness and strength, with a moderate increase in impact strength compared to glass fibre.