Homopolymer Acetal or Delrin is the best plastic for turning on a machine lathe. It’s simple to turn, although it requires reduced speeds. I’ve used this material to make Scottish small pipes chanters. I have ordered countless items from a plastic shop in Anaheim. The smaller parts always ship quickly and everything has been well packed. I have never had a problem with an order.
Between the Delrin and Acetal rods, both materials are quite durable and easily machinable, as they have very similar physical properties. They do appear similar, but in practical use there are a few differences that can make one preferable than the other. It also depends on your application. As with all plastic materials, make sure to check the typical properties data sheet for the appropriate properties you may need for your application.
Our Acetal Sheet is definitely our primary material for machining,giving an great finish both on manual and CNC Machines. It has a pretty low moisture absorption making it the ideal grade for food contact and where the dimensional stability is critical. Acetal Sheet has an ideal combination of high mechanical strength, hardness and strength, giving it excellent sliding properties, electrical insulation, and wear resistance.
Acetal Sheet has countless uses and is particularly valued in the food preparation industry. Because of its low moisture absorption it helped it to achieve Food & Drug Administration approval and its superb sliding abilities which aid with very low friction and hard wearing food safe components.
Acetal Sheets are of the plastics chosen within the auto industry because of its long term dimensional stability and durability. It delivers solutions for designers to help them produce long lasting and very durable components. Another popular area for Acetal Sheet is in water applications. This environment suits acetal quite because the low moisture absorption results in components that will not expand or change dimensions due to contact with water.

Acetal Copolymer Sheet