Black Zinc Plating refers to the color of the chromate that is applied during the post plating process. It includes a layer of zinc applied to a parts surface followed by black chromate applied over the zinc. Black Zinc is commonly specified for its dark appearance and protective properties.

Black zinc plating is a popular metal finish that provides the underlying component with anti-galling properties and additional corrosion protection. This type of plating is typically applied to parts exposed to high temperature, high wear, and corrosive environments.

Great Lakes Metal Finishing, Inc offers both trivalent black zinc plating and hexavalent black chromate as two of our many options for zinc plating. We offer these electroplating options in both rack plating and barrel plating processes.

2022年11月21日 · Black zinc is zinc plating (say .0002" thick or more) followed by a black chromate conversion coating. You get the sacrificial corrosion protection of zinc, plus a nice appearance, but it does affect the dimensions enough to be a problem on very tight fitting parts.

2013年2月10日 · It sounds like you are looking for zinc plating with black chromate. The process involves cleaning, activating, zinc plating, and application of a black chromate conversion coating.

In 2019, Varland installed a chloride zinc plating process with propelled our trivalent black process to new heights. After fine tuning the chemistries, we reached a level of appearance comparable to hexavalent black while also providing benefits like reduced …

Black Trivalent Chromate is the top coat applied after Zinc-Nickel plating to provide added corrosion resistance and a black color to the part. Black chromate finishes are used in a variety of industries including automotive, military, oil and gas, and more.