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Need Ra 3.2 finish on Delrin

June 10, 2010

Hello I am an owner of a small Tool & Die co. and I am quoting on a small job and need to know, what can I use or how can I measure a RA 3.2 on black Delrin? I gather from the information on this sight that it is rather high polish.
Regards

Charles Hills
Tool & Die Maker - Union, New Jersey

June 14, 2010

Most manufacturers of measuring tools have roughness testers.

Guillermo Marrufo
Monterrey, NL, Mexico

June 22, 2010

The Ra number may not be the problem. Part size and how it is made will determine the process to achieve the finish.

AF Kenton
retired business owner - Hatboro, Pennsylvania

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