With trivalent blue bright chromates increases in the ph that lead to values greater than 2 3 1 8 to 2 0 being optimal for most processes.
Zinc clear trivalent chromate.
P 1265 the coating serves as a corrosion inhibitor as a primer to improve the adherence of paints and adhesives as a decorative finish or to preserve electrical conductivity.
The fix is a 0 5 nitric acid pre dip before the chromate use of a very blue trivalent chromate and close control of the chromate ph.
We offer many plating methods for various industries and offer the best available technology while reducing excessive.
Tin zinc is available in a clear trivalent finish.
The process is named after the chromate found in the chromic acid used in the bath more commonly known as trivalent chromium.
Chromate conversion coating or alodine coating is a type of conversion coating used to passivate steel aluminium zinc cadmium copper silver titanium magnesium and tin alloys.
Zinc trivalent chromate plating.
Trivalent dichromate conversion coating is a type of coating used to passivate zinc cadmium copper silver magnesium and tin alloys.
For example if we do zinc plating on iron and if the coating is scratched somewhere.
Epi offers both hexavalent chromate and trivalent chromates in blue and yellow variations.
See reverse side for current specifications and availability.
It can act as a sacrificing coat.
Glmf specializes in trivalent passivation for zinc and yellow zinc and clear zinc and black zinc and olive drab zinc nickel stainless steel passivation and other finishing processes to meet our customer s specifications.
Clear blue yellow or black.
Modern plating now offers a full range of trivalent chromate finishes chrome iii in clear yellow and black for zinc and in clear and black for zinc nickel zinc cobalt and zinc iron.
Zinc plating is a common process of protecting a wide range of materials.
Chromates can come in many different color variations.
Zinc w clear hexavalent chromate 96 zinc w yellow trivalent chromate 336 zinc w yellow hexavalent chromate 240 zinc w black hexavalent chromate 300 zinc w olive drab hexavalent chromate 400 zinc w clear hexavalent chromate seal 240 chem processing inc.
Components are zinc plated for corrosion resistance but the zinc plating itself is subject to early corrosion white rust.
Zinc plating with clear chromate has yellowish discoloration.
Offers precision rack and barrel zinc plating services to illinois.