Zinc is a sacrificial coating used to prevent corrosion on steel. The corrosion resistance of zinc is very comparable to cadmium. With the use of chromates and sealers, the corrosion resistance can be increased. 

Zinc has other applications such as:

• Improving the aesthetic value of the part.
• Lubricity.
• Combined with chromate or phosphate, makes a good paint base.
• Combined with chromates and dyes can be used for identification purposes. 

Zinc plating baths in use at Hohman Plating:

• Cyanide Zinc (barrel method).
• Non-cyanide Alkaline Zinc (rack and barrel method).
• Acid Zinc (rack and barrel method). 

Post-plating chromates provided are:

• Gold
• Clear (this is trivalent RoHS compliant)
• Black
• Olive Drab 

Post-plating dyes provided are:

• Red
• Blue
• Green

Hohman Plating and Manufacturing, Inc.
814 Hillrose Avenue
Dayton, Ohio 45404
Phone: 937-228-2191
Fax: 937-228-5171

Copyright © 2007 Hohman Plating & Mfg., Inc. All rights reserved .