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Quality Plating Co., Inc.

801-355-7424

sales@qualityplating.com

Services/Finishes: We offer a wide range of plating finishes as indicated by the following list. We have included some general information, but please contact us to answer questions related to your specific needs.

Black Zinc Plating

We offer superior quality and beauty of finish for.

for both barrel and racked parts

Black zinc plating is a zinc plating with a black chromate applied as a post treatment. Black zinc is a popular corrosion resisting finish for steel. The advantages of black zinc over other ways to blacken steel are many. Black zinc is a corrosion resistant coating whereas a black oxide coating is not. Black zinc is much thinner than a black paint or powder coating. The main disadvantage of black zinc is that it does scratch fairly easily.

It is possible to put a black dye over zinc plating; however, the black dye will decrease the corrosion resistance of the zinc coating. A black dyed zinc plated part will not pass salt spray for ASTM B633. The black chromate actually increases the corrosion resistance of the zinc coating. Quality Plating uses the black chromate process since it is a supperior product.

The black chromate can have a slight irridescence or some colors of the rainbow in the black color. It is also possible to barrel plate using the black chromate but the finish will not be as cosmetic because the parts are hitting one another and leaving some scratching.