All sheet stock is sold, quantity = square foot. Please indicate your cut to size dimensions in special order notes on the cart page after adding sqft to the cart. Max shippable sheet size is 4x3ft, for anything larger please contact us directly.

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.

• Low moisture absorption
• High strength, stiffness
• Easy to machine
• No centerline porosity in Acetron® GP
• Many formulation options: Copolymer, Homopolymer, PTFE filled, and Internally lubricated/enhanced wear grade

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.

Mitsubishi Chemical Advanced Materials offers both homopolymer and copolymer grades of acetal including enhanced bearing grade materials. Acetron® GP acetal is porosity-free and offered as our standard general purpose grade. For slightly higher mechanical properties, we offer a broad size range of the homopolymer acetal (Delrin®) products. For improved frictional properties PTFE-enhanced Delrin AF products are available.