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Delrin vs Acetal

by: aiplastics( 414Feedback score is 100 to 499) Top 5000 Reviewer
53 out of 58 people found this guide helpful.
Guide viewed: 5332 times Tags: delrin | acetal | pom | plastic | lathe


These are both polyacetal grades, manufactured by companies such as Quadrant Engineering Plastics.

Acetal is a copolymer version;
Copolymer grades tend to be more resistant against hydrolysis, strong alkalis and thermal-oxidative degredation than the homopolymer grades.

Delrin is a homopolymer version;
The homopolymer grades have a higher mechanical strength, stiffness, hardness and creep resistance as well as a lower thermal expansion rate and often it also presents a better wear resistance.

Be wary of listings with both the words 'Acetal' and 'Delrin' in the title- they may be trying to sell Acetal at Delrin prices, which are usually slightly higher.

Look out for brand-names, Ertacetal for example comes in a number of forms- Ertacetal C is a copolymer Acetal, Ertacetal H is a homopolymer made from genuine DuPont Delrin resin.

Both products are usually available in Natural (White) and Black. Acetal is made in other colours, with Blue being a popular choice in the food industry.

Search for Acetal on eBay | Search for Delrin on eBay | Visit eBay Shop \'Plastic Supermarket\'

Guide ID: 10000000001411768Guide created: 18/07/06 (updated 02/07/08)

 
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Related tags: delrin | lathe | acetal | pom | plastic

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aiplastics
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