Zinc Plating

Zinc Plating

Zinc electroplating is an acid coating that is used in the protection of steel, cast iron, malleable iron, copper, and brass. As zinc is applied to any of these base materials, strong bonds are created. Zinc is normally applied for corrosion purposes, and functions as a "sacrificial coating", corroding before the base material. To increase the corrosion protection Chem Processing Inc. offers RoHS compliant Clear Trivalent Chromium and Black Trivalent Chromium seals, as well as Yellow Dichromate and Olive Drab Hexavalent seals. Chem Processing, Inc. also offers a range of inorganic and organic topcoats, such as Doerken Delta coatings, that can significantly enhance the corrosion protection offered by zinc plating. Contact CPI for more on these options.

Zinc is an efficient economical coating, with a minimal environmental impact. Plated zinc is not recommended for equipment that is continually immersed in solutions, petroleum applications, pharmaceutical applications, or food-handling applications.

Chem Processing Inc. Zinc Plating Capabilities:

• Plating thickness range of 0.0001 to 0.002 in.
• Rack and Barrel plating available
• Available masking for selective surface plating
• Hydrogen Embrittlement (Parts with a hardness of 36 Rc or greater will be baked a minimum of 3 hours at 375F to relieve entrapped hydrogen)
• RoHS Compliant Clear and Black Trivalent Chromium seals, Yellow Dichromate and Olive Drab Hexavalent seals
• Thickness Analysis on a Fischer Technology XDL-B X-Ray Fluorescent Spec

Applicable Specifications:

Typical Salt Spray (ASTM B117) Results:

Chem Processing Inc. offers zinc plating services to Illinois, Wisconsin, Iowa, the Midwest and beyond. CPI is strategically located by highway routes to Chicago, Milwaukee, Madison, St. Louis, and Minneapolis. The CPI facility is minutes from a major Midwestern air freight hub, enabling efficient door-to-door delivery across the United States or across the globe.