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What the difference between Dupont Delrin and Acetal Copolymer in Sheet or Plate and Round Rod

Homopolymer Acetal or Delrin is the perfect plastic for turning on a machine lathe. It’s easy to turn, although it does require reduced speeds. I use this stuff to make Scottish small pipes chanters. I have purchased many items from iPlastic. The smaller pieces usually ship promptly and everything was well packed. I’ve never had a problem with an order.
Between the Delrin and Acetal rods, both materials are quite durable and easily machinable, and they have very comparable physical properties. They do appear similar, but for practical uses there are a few 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 applicable properties you may need for your application.
Our Acetal Sheet is definitely our best material for machining,giving an nice finish both on manual and CNC Machines. Its got a pretty low moisture absorption making it the preferred grade for food contact and where the dimensional stability is important. Acetal Sheet has the perfect combination of high mechanical strength, durability and toughness, giving it excellent sliding properties, electrical insulation, and wear resistance.
Acetal Sheet has numerous applications and is especially of value in the food preparation industry. Because of its low moisture absorption it helped it to achieve Food & Drug Administration approval in addition to its superb 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 auto industry because of its long lasting dimensional stability and toughness. It provides solutions for designers to help them produce long lasting and very durable components. Another popular area for Acetal is in marine applications. This environment suits acetal quite because its low moisture absorption results in components that won’t expand or alter dimensions due to contact with water.

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