Clear & Yellow zinc plating
Clear & Yellow zinc plating
(OP)
still having trouble getting the facts straight. . .
Is type II colorless (clear) and type III yellow (with added chromates?)
I beseech thee....for clarification. . . . .
Is type II colorless (clear) and type III yellow (with added chromates?)
I beseech thee....for clarification. . . . .





RE: Clear & Yellow zinc plating
Type I - As-plated without supplementary treatment
Type II - With colored chromate conversion coatings
Type III - With colorless chromate conversion coatings
Type IV - With phosphate conversion coatings
I recommend you obtain a copy of this document if you intend to specify these types of coatings. It is available directly from ASTM at http://www.astm.org/.