Zinc Yellow Chromate Plating

We can also improve the surface conditions of various metals with processes such as electropolishing passivation and bright dip.

Zinc yellow chromate plating. Trivalent yellow and hexavalent yellow. Yellow chromate solution 4oz. Iridescent yellow chromate after preparing the part to accept the process the part is simply dipped into a solution for a few minutes. Astm b633 sc1 type ii scope this specification covers electrodeposited zinc coatings as applied to steel copper brass and bronze parts to protect them from corrosion.

To improve those older zinc pot metal. Our unique trivalent yellow passivate is ideal for our customers who require their products to be ultraviolet uv stable as our coatings do not contain dye. Steel parts requiring embrittlement relief after plating are baked according to industry standards. Color can vary from colorless to iridescent yellow brown.

Zinc dichromate remains a superior chromate for primer applications. Some of our metal finishes include anodizing chromating zinc plating electroless nickel plating tin plating wet paint and powder coating. The yellow chromate is a yellow bronze iridescent finish on plated cadmium and zinc. I am trying to persuade our engineering department to allow us to make the switch to have our hardware clear zinc plated.

Liquid concentrate is used at 0 5 to 3 by volume in water at 65 to 90 f. Zinc trivalent dichromate plating provides a similar finish to the hexavalent finish with the added benefit of rohs compliance. The finish has outstanding resistance to salt spray greatly surpasses the normal 96 hour salt spray resistance specified for yellow chromates on zinc. Trivalent dichromate conversion coating is a type of coating used to passivate zinc cadmium copper silver magnesium and tin alloys.

Great lakes metal finishing inc has two zinc yellow plating options. Zinc dichromate plating provides additional protection for corrosion vs. A discussion started in 2011 but continuing through 2018. Coatings shall be continuous free from.

Yellow zinc plating vs. These hues can appear to be yellow green red blue and etc. I was hoping to reach out to you to help me with this research. The zinc the chromate react to form the new colors.

The iridescence in a dichromate conversion can display different iridescent hues. If you were specifying zinc with clear chromate you would have to specify type i.