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Hostaform® polyoxymethylene copolymer possesses a linear structure with a highly crystalline quality that provides a variety of characteristics: Outstanding wear, long-term fatigue, toughness and creep resistance as well as excellent resistance to moisture, solvents and strong alkalis. Its chemical structure provides a higher stability to thermal and oxidative degradation compared to acetal homopolymers.
POM – also known as acetal or polyacetal – is a highly crystalline, high-performance engineering polymer that displays a broad range of properties, particularly its low coefficient of friction, excellent wear resistance, high modulus and resistance to many solvents and automotive fuels. Basic mechanical properties of acetal copolymers include high strength and stiffness coupled with good impact strength.
Low moisture absorption results in excellent dimensional stability and makes Hostaform® & Celcon® POM an excellent candidate for parts that must exhibit tight tolerances in moist environments.
As a leading acetal copolymer manufacturer, Celanese provides a variety of POM grades that span a wide array of applications & industries, due to their high-performance thresholds.
POM, which is derived from methanol, can be made from renewable sources like biogas or CO2 emissions.
POM ECO-B is an option that can be applied to any grade in the Celanese POM portfolio. By using the mass-balance process, the benefits of using renewable methanol can be allocated to specific products to help customers meet their sustainability objectives. On a polymer basis, the POM ECO-B option can offer up to 97% renewable content and up to 50% CO2 footprint reduction using waste-based feedstocks.
In a broader context, the inherent characteristics of POM, such as high stiffness, thermal stability, sliding properties and wear resistance, enable enhanced sustainability in many applications by helping make parts that are both longer lasting and lighter.
Most grades comply with FDA and EU food contact regulations (2002/72 EC), and standard Hostaform® products have successfully passed drinking water testing at WRAS, KTW and NSF. MT grades, with an active Drug Master File (No. 11559), comply with USP Class VI guidelines. All Hostaform® products are also available in a wide array of colors that do not contain heavy metals.