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Masking welds prior to Anodize operations




2006

Our customer calls out on the drawing for us to "mask all welds" prior to anodizing.

Question,

Can we actually mask welds prior to the anodizing operation, Or will the anodizing process itself, remove any masking that we do?

Greg Shirey
manufacturing - Arab, AL, United States



From your letter, I couldn't tell if you were an anodizer, or a manufacturer of the parts, or both. I've never seen that called out before. But yes, welds can be masked prior to anodizing. Sounds like the best way to go would be to use a paint mask suitable for the anodizing process. If you're not doing the coating yourself, I suggest you let your anodizer handle the masking requirement.

Marc Green
Marc Green
anodizer - Boise, Idaho
2006



Depends on the weld type! If spot welds, we've used Loctite product which wicks into seam between welds and prevents bleeding out after anodize. Laborious but works. Recall that mil spec says not to anodize welded aluminum in the first place!

milt stevenson jr.
Milt Stevenson, Jr.
Syracuse, New York
2006




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