Acetal
Acetal, or polyoxymethylene (POM), is a high-performance engineering plastic prized for its exceptional strength, low friction, and outstanding dimensional stability. This makes it an excellent choice for precision components in industries such as automotive, aerospace, medical, and manufacturing. One of acetal’s standout properties is its low moisture absorption, meaning it retains its shape and mechanical properties even in humid or wet environments. Unlike many other plastics, it resists warping and swelling, making it ideal for applications requiring tight tolerances. Acetal also boasts excellent wear resistance and a low coefficient of friction, making it a preferred material for gears, bearings, bushings, and sliding components. It can withstand repeated mechanical stress without losing performance, offering a long service life in high-load applications. Another key advantage of acetal is its chemical resistance. It holds up well against fuels, solvents, and many industrial chemicals, making it a reliable choice for parts exposed to harsh operating conditions. Additionally, acetal is easy to machine, allowing for precise and consistent fabrication with tight tolerances. Whether you need high-performance plastic components for demanding applications or simply a reliable material that delivers strength and durability, acetal is a top choice. Contact us today to discuss how we can machine acetal parts to meet your exact specifications.
Acetal is commonly called by one of it’s tradenames, Delrin. It cuts very well on our CNC Routers and is one of the few engineering plastics we can safely cut on our lasers.
Although we don’t sell this in our online store, send your drawings here and we will happily quote or cut them for you. FYI we don’t machine bar or tube products.
Common uses
- Gears
- Slide Bearings
- Food processing industry
- Insulators
Basic Properties
- Good resistance to wear
- Food-Industry Approved
- Density = 1.41g/cm³
- Coefficient of friction = 0.42
- Temperature range = -40°c to 100°c (120°c for short term is OK)
- Dielectric strength = 40 KV/mm