Homopolymer Acetal or Delrin is a great plastic for turning on a lathe lathe. It’s simple to turn, although it requires slow speeds. I use this plastic to make Scottish small pipes chanters. I have ordered countless items from iPlastic. The smaller Dupont Delrin compared to Acetal Copolymer pieces always ship quickly and everything was well packed. I’ve never had an issue with an order. Between the Delrin and Acetal rods, both materials are incredibly tough and easily machinable, as they have comparable physical properties. They do appear similar, but for practical use there are a few differences that may make one preferable than the other. It also depends heavily on your application. As with all plastic materials, be sure to check the typical properties data sheet for the desired properties you may require for your application.
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