Homopolymer Acetal or Delrin is a great plastic for turning on a lathe lathe. It is very easy to turn, but it requires slow speeds. I use this stuff to make Scottish small pipes chanters. I have purchased many items from iPlastic. The small parts usually ship promptly and everything was well packed. I have never had an issue with an order.
Between the Delrin and POM-C rods, both materials are very tough and easily machinable, and they have very comparable physical properties. They look similar, but for practical use there are some differences that can make one better than the other. It also depends heavily on your application. As with any plastic materials, make sure to check the typical properties data sheet for the desired properties you may need for your application.
Our Acetal Sheet is probably our choice material for machining,giving an excellent finish both on manual and CNC Machines. It has a very low moisture absorption making it the preferred grade for food contact and where the dimensional stability is critical. Acetal Sheet has the best combination of high mechanical strength, hardness and toughness, giving it superb sliding properties, electrical insulation, and wear resistance.
Acetal Sheet has many uses and is particularly valued in the food preparation industry. Because of its low moisture absorption it gained Food & Drug Administration approval along with its excellent sliding abilities which aid with very low friction and hard wearing food safe components.
Acetal Sheet stock, perhaps the best of the engineering plastics chosen within the automotive industry because of its long term dimensional stability and durability. It offers solutions for designers to help them create long lasting and very durable components. Another popular area for sheet Acetal is in moisture applications. This environment suits acetal well because the low moisture absorption results in components that will not expand or change dimensions due to contact with water.