Zinc Plating

A leader in the metal finishing industry since 1928, Keystone Corporation provides high quality zinc plating for automotive, aerospace, military and consumer applications.


Using state of the art processes with proven quality control, Keystone Corporation provides reliable performance coatings that increases the lifetime and durability of industrial components.  Zinc plating prevents oxidation therefore extending the life of base metals by resisting rust and degradation. Keystone Corporation offers a superior surface finish that maintains its appearance longer and increases the strength and durability of metal hardware and components.


Zinc plating is a cost effective coating that exhibits reliable, consistent coverage.  Post plate heat treatment prevents the occurrence of hydrogen embrittlement and our electrodeposited method improves the bonding of paint and adhesive, offering an attractive final finish or allowing for the application of sealants or chromates over the zinc finish. 

We offer a variety chromate color choices:
  • Clear
  • Yellow
  • Black
  • Olive Drab
  • RoHS Compliant Clear
  • Chrome Free Clear (RoHS Compliant)
  • Chrome Free Yellow (RoHS Compliant)


Keystone Corporation can provide plating certification to the following specifications:

  • ASTM-B-633

  • AMS-QQ-Z-325

Keystone Corporation can assist in completing commercial orders ranging from a few specialized pieces to an extra-large run of materials. We maintain superior quality control through the entire finishing and baking process ensuring top quality zinc plating at an affordable cost for any private project or commercial production. Contact Keystone today to receive a personalized quote based on the specific requirements of your business.

Plated metal parts

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