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Chromate Conversion

Trivalent Chromate Conversion Coatings

Duracoat® 1523 (Liquid Blue Bright)
A single dip trivalent chromate conversion coating treatment for a blue bright finish on zinc plated parts. Can be used in automatic or manual lines, for rack or barrel processing and is effective even over alkaline non-cyanide zinc deposits.

Duracoat® Tri-Black (Liquid Black)
Produces a trivalent black chromate conversion coating on zinc and zinc alloy electrodeposits. This 4-component bath has enhanced color and excellent corrosion resistance when used with Duraseal Tri-Black Sealer. Working solutions are very stable and will tolerate high amounts of dissolved zinc without compromising coating quality.

Duracoat® Tri-V Yellow Dye (Liquid Yellow)
Specially formulated colorant, which converts clear/blue trivalent chromate conversion coatings to attractive yellow.

Quin-Pas 12 (Liquid Clear Blue)
An all-trivalent chromate conversion coating for zinc. Bath is easy to control and operates over a wide range of parameters. Contains no peroxides. Imparts a clear blue coating with no evidence of yellowing.

Triumph 3000 (Liquid Blue Bright)
A highly corrosion resistant trivalent blue chromate for use over zinc electroplate. Maintains a consistent blue color throughout the life of the bath.

Triumph Plus (Liquid Blue Bright)
Produces a superior corrosion resistant trivalent blue chromate coating over zinc electroplate. Has a longer bath life and is tolerant to metallic impurities.


Chromax® 4101 YL Liquid A concentrated chromate conversion coating producing uniform gold to appealing iridescent bronze colored coatings over zinc plated parts. Unsurpassed corrosion protection combined with ease of handling.

Chromax® 4106 YL Liquid Produces brilliant, stain free, clear iridescent and golden chromate conversion coatings for zinc and cadmium plate. The exceptionally stable bath provides coatings with excellent corrosion resistance. High tolerance for metal contamination results in extended bath life.

Duracoat® 1237 Liquid A heavy-duty chromate conversion coating for zinc plate and zinc die-castings. Produces brilliant clear, iridescent and golden chromate conversion coatings. A versatile product achieving the most protective and deepest color coatings at low concentrations and the brightest color coatings at higher concentrations.

Duracoat® 1405 Liquid An economical, golden yellow chromate conversion coating for electrodeposited zinc. Especially suited to alkaline non-cyanide and acid chloride zinc deposits. Used at 1-5% by volume and with very short immersion times.

Blue Bright

Duracoat® XCL Blue Liquid A long dilution chromate conversion coating used for producing a blue bright coating on zinc-plated parts. Can be used for manual and automatic barrel and still plating applications. Provides protection of parts for shipping and storage. The coating formed is receptive to dyes.


Duracoat® 22/23 Liquid Imparts a black film of silver chromate conversion coating to electrodeposited zinc. Uniform and dark in appearance, this coating greatly improves corrosion resistance. A 3-component bath made up using 7% by volume of each constituent.

Duracoat® Star Black Liquid A simple two-component formula for producing a black chromate conversion coating on zinc or cadmium plate. Short immersion times result in attractive, corrosion resistant, uniform coatings.

Olive Drab

Duracoat® OD Liquid A scratch resistant, olive drab chromate conversion coating that improves corrosion resistance and is an excellent base for paint. Works equally well in both manual and automated plating lines. Used on zinc and cadmium plated deposits as well as on zinc die-castings. A two-component product.

Duracoat® OD-6 Liquid A one-component, olive drab chromate conversion coating that produces a hard, resistant finish that is quite lustrous when applied over bright plate. Attractive as a final finish or used as a base for paint or lacquer.