• Chromate Conversion Coatings

Chromate conversion coatings based on hexavalent chromium solutions have been used since the 1940s to provide corrosion protection for electrodeposited zinc and cadmium, zinc die castings and aluminum. Chromate conversion coatings are economical, easy to use and offer a variety of valuable properties to extend the service life and improve the performance characteristics of the parts being treated. DuBois has formulated high performance chemistries that provide vibrant color and corrosion protection while increasing the life and ease of operation for your system. High performance trivalent chromate conversion coatings are available for applications where hexavalent chrome containing coatings are prohibited.

DuBois chromate conversion coatings products offer many benefits and options including:

  • Trivalent and Hexavalent products
  • Solutions for substrates including zinc, zinc electroplate, aluminum, zinc and cadmium plate, zinc die-castings, copper, brass, and silver
  • Excellent Corrosion Protection
  • Wide range of chromate conversion coatings are available: blue-bright, iridescent, golden yellow, olive drab, matte black and bronze