Are acetal and Delrin the Same?

Delrin® homopolymer (polyoxymethylene POM) and copolymer acetal are both ideal materials for replacing metal parts. They combine low friction and high wear resistance with the high strength and stiffness required for such applications. Compared to copolymer acetal, Delrin® homopolymer has higher tensile strength, stiffness, creep resistance, fatigue resistance, and significantly higher impact resistance. It is challenging to determine which material is better, as it mainly depends on the specific environmental conditions of the end-user. For example, in terms of central porosity, homopolymer acetal is more prone to central porosity compared to copolymer acetal.

Acetal POM-C




POM-H+PTFE