Acetal provides high strength and stiffness coupled with enhanced dimensional stability and ease of machining. As a semi-crystalline material, acetal is also characterized by a low coefficient of friction and good wear properties — especially in wet environments.
Because acetal absorbs minimal amounts of moisture, its physical properties remain constant in a variety of environments. Low moisture absorption results in excellent dimensional stability for close-tolerance machined parts. In high moisture or submerged applications, acetal bearings outperform nylon 4 to 1. Acetal is ideally suited for close tolerance mechanical parts and electrical insulators which require strength and stiffness. It also offers resistance to a wide range of chemicals including many solvents.
Norcen Industries, Inc. offers both homopolymer and copolymer grades of acetal including enhanced bearing grade materials manufactured by Mitsubishi Chemical Advanced Materials (formerly Quadrant). Acetron® GP acetal is porosity-free and offered as Mitsubishi’s standard general purpose grade. For slightly higher mechanical properties, Mitsubishi offers a broad size range of the homopolymer acetal (Delrin®) products. For improved frictional properties PTFE-enhanced Delrin AF products are available.
Norcen Industries also offers Acetal by other manufactures. When contacting us pertaining acetal, please let us know if you would like Mitsubishi’s acetal trade names.
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