Acetal (Polyoxymethylene or POM) provided by Interstate Plastics is a tough, machinable thermoplastic with a high modulus of elasticity, high strength, good rigidity, dimensional stability, and resistances to moisture, chemicals and solvents. It has desirable toughness properties, performing well at extreme temperatures and under fatigue endurance. A low coefficient of friction (COF) alongside excellent wear properties, especially in wet or moist environments, makes acetal one of the most widely used engineering thermoplastics on the market today.
Low Moisture Absorption
Acetal is ideal when working in wet environments as it absorbs minimal amounts of moisture, and with a high level of heat resistance, can be heated or cooled without affecting form or dimensionality. Acetal is used in hot water applications up to 140⁰F without any hydrolysis effect. Unlike other materials that may erode from acidic water, hard water does not harm acetal.
High Strength & Stiffness
Due to rigidity, resilience, toughness and strength, acetal does not become brittle even with long-term exposure to unfavorable conditions including extremely high temperatures.
Easy to Machine
Acetal plastic is available in extruded rod and sheets for machined parts. Interstate Plastics carries sheet grades of copolymer acetal that are readily machined with standard machining practices. Any machining tool that is capable of high speed without vibration can be used.