polyoxymethylene

Polyoxymethylene (POM), commonly known as acetal or Delrin®, is an engineering thermoplastic characterized by a linear polymer chain of repeating -CH₂-O- units. It offers excellent dimensional stability, low creep, and high stiffness, making it a preferred choice over general-purpose plastics in precision applications where tight tolerances and mechanical consistency are critical. The material is widely used in automotive fuel systems, precision gears and bearings, plumbing fittings, and consumer appliances, particularly where repeated flexing, wear resistance, or long-term dimensional accuracy cannot be compromised.