Acetal, has dimensional stability,
lower moisture acetalorption, and easier machinability than nylon, but is not as
good in slide wear. It is FDA/USDA/NSF/3A Dairy Approved, has continuous-use
temperature of 180° F, and is available in two types of Acetal Rod (Homopolymers-
Delrin® 150; Copolymers-Acetron® GP, Celcon®.