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topic 11241

Specification for bright dip


Is there a commercial or mil spec covering bright dipping?

Jeff Feick
- Columbus, Ohio


I never have heard of one.

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Tom Pullizzi
Falls Township, Pennsylvania



I presume that the bright dipping is meant for zinc or cadmium plated parts. Generally 0.25 to 0.5%v/v HNO3solution is used and the immersion time is about 10 to 20 seconds. This process precedes yellow chromate passivation(Cr+6) and other types of passivation like olive green and black.


- Bangalore, Karnataka, India

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