Acetal (Polyoxymethylene, POM)
Acetal, also known as POM (Polyoxymethylene), is a semi-crystalline engineering thermoplastic material, with a continuous use temperature range of up to 180° F (82° C). Acetal offers high strength and stiffness coupled with high dimensional stability and ease of machining.
Polycarbonate
Polycarbonate, also referred to as PC, is a tough, impact-resistant, virtually unbreakable material used in wide variety of applications. It is an amorphous thermoplastic material, with a continuous use temperature range of up to 265° F (129° C).