plating, anodizing, & finishing Q&As since 1989
Specs for Black Anodizing of 6061-T6 Aluminum
We require a Black Hardtuf X20 Anodize finish per MIL-A-63576 [affil link] A (or equivalent) on some of our parts. Can you tell me if MIL-A-8625 / MIL-PRF-8625 [affil link or DLA]F is equivalent to this finish?Nelson Conchinha
medical device manufacturer - New Bedford, Massachusetts
Ed. note: Sorry, this RFQ for private contact is now outdated, but public technical replies are still welcome. No public brand/source suggestions please ( huh? why?)
Black Hardtuf X20 is a proprietary process that would take place AFTER the parts are Hard Anodized.
metal finishing - San Jose, California
MIL-A-63576A specifies a hardcoat per MIL-A-8625 (Type III, Class 1) *Emphasis on Type and Class* with an additional PTFE post treatment. So no, they are not equivalent. Companies who supply coatings to this specification, using a variety of trade names, use different techniques and methods to apply the PTFE post treatments. So Luke Engineering's product, Lukon 24, and others may not be exactly equivalent either.Chris Jurey, Past-President IHAA
Luke Engineering & Mfg. Co. Inc.
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