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We need to know what is a "Unichrome" finish. Is this a trademark for a clear chromate Zinc conversion?

Derrek Tuthill
hardware mfg. - Winston-Salem, North Carolina


Unichrome is a trademark of Atotech USA, for chromium plating, copper plating, and chromate conversion coatings.

So yes, you are correct, you need to contact Atotech to see which number corresponds to the product you need, for instance, Unichrome 16 or Unichrome 34, etc.

Tom Pullizzi
Falls Township, Pennsylvania
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