Zinc Electroplated And Clear Chromate
Trivalent dichromate conversion coating is a type of coating used to passivate zinc cadmium copper silver magnesium and tin alloys.
Zinc electroplated and clear chromate. There is some confusion about what that term actually means however. Zinc plated and clear chromate rinse 2003. This process is done by putting zinc or a zinc plated metal in a solution of sodium dichromate and sulfuric acid for a few seconds. Zinc plated zinc chromate dichromate thanks very much.
But my supplier said i cannot have zinc plating and then chrome plating. Clear zinc plating essentially does mean colorless or transparent and is essentially a color choice which shows the. Zinc trivalent dichromate plating provides a similar finish to the hexavalent finish with the added benefit of rohs compliance. My american customer wants zinc plated and clear chromate rinse on hr p o steel.
When you re researching zinc electroplating you will eventually encounter the concept of clear zinc plating. 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. Zinc plating is an inorganic metal coating that is deposited on a steel using an external electric current. A process known as the cronak process is used to create zinc chromate for use in industry.
Zinc chromate is usually an organic primer paint that can be spray or brush applied over steel galvanizing or even zinc plating. 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. We make custom metal parts. Is the zinc truly clear.