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Chrome-free coatings





2003

I am looking for a "chrome-free" alternative to yellow chromate conversion coating. We fabricate low-carbon and medium-carbon steel parts that are zinc-nickel plated and have a chromate conversion coating for enhanced corrosion resistance against water and humidity. Also, is there a "risk" when handling such parts, or is the environmental hazard restricted to the chemical processing that occurs at the plater?

Chip Wright
- Indianapolis, Indiana, USA



2003

Chip, is very important the color of the covering? Can you to finish the pieces in white or black color, eliminating the yellow color? Tell me something about this.

Miguel Angel Martin
Miguel Angel Martín
surface finishing shop
Madrid, Spain



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