Corrosion Protection

Trivalent Passivates

Our line of trivalent passivates for superior corrosion protection are hexavalent chromium free and comply with current ELV, RoHS and REACH regulations. They are known throughout the industry for meeting and exceeding OEM corrosion protection specs. They can provide a trivalent passivation layer that is clear, blue, yellow, black or iridescent.

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Technical Data Sheets, SDS, Process Approvals, Troubleshooting Guides and Applicator Approvals

Product Info
  • COLDYE YELLOW 226-Y2

    A concentrated liquid dye for zinc and zinc alloy plated parts

  • COLDIP ALPASS 455 CS

    A trivalent passivate for aluminum alloys.

  • COLDIP® NI-Z Clear 250

    Unique Trivalent passivating conversion coating for electroplated zinc-nickel alloys. Imparts an aesthetically pleasing clear, colorless conversion coating which when applied properly will produce a finish that exceeds 250 hours of neutral salt spray to white corrosion products.

    COLDIP® NI-Z Clear 250 Features + Benefits Sheet

  • COLDIP® MIDNIGHT 1500

    Latest generation trivalent black passivate for zinc plating. Easy-to-use process with a simple three-part system which allows for maximum color control and provides a consistent black appearance. The passivate works well over alkaline cyanide-free zinc and zinc-iron/cobalt alloy deposits.

    COLDIP® Midnight 1500 Features and Benefits Sheet

    COLDIP® Midnight 1500 selected as Products Finishing Innovator

     

    COLDIP MIDNIGHT 1500 black parts against grey background.
  • COLDIP® NI-Z SAPPHIRE 400

    High-corrosion resistant bright blue trivalent passivate for use in the rapidly growing Zinc Nickel (ZnNi) electroplating Industry.  Imparts an aesthetically pleasing blue-bright conversion coating which, when applied properly, will produce a finish that exceeds 400 hours of neutral salt spray to white corrosion products.

    COLDIP® NI-Z Sapphire 400 Features & Benefits Sheet

  • SpectraMATE® 25

    High performance trivalent passivation for use over zinc electroplated deposits. Gives a slightly iridescent appearance and extremely high corrosion resistance. Wide operating ranges for ease of use and ambient operating temperature. This product contains cobalt.

    SpectraMATE® 25 Features & Benefits Sheet

    SpectraMATE® 25 Information

     

     

  • COLDIP® NI-Z Black Diamond 500

    Unique trivalent black conversion coating for electroplated zinc-nickel alloy. Ideal for both rack and barrel installations using alkaline and acid-nickel deposits. Produces a uniform, gloss-black, scratch-resistant finish and works over a very wide nickel alloy content range of 11% – 17%. Achieves over 400 hours to white corrosion and over 1,000 hours to red rust when sealed with Columbia Chemical sealer. 

    COLDIP® NI-Z Black Diamond 500 Features & Benefits Sheet

  • COLDIP® TRI-V 121

    Trivalent blue passivation for use over zinc electroplated deposits. Suggested for high corrosion resistance requirements where an additional sealer or topcoat may not be used. This product contains cobalt.

    COLDIP® Tri-V 121 Features & Benefits Sheet

  • COLDIP® TRI-V YELLOW CONVERTER

    Concentrated liquid dye that provides an intense yellow-gold color.  Added directly to trivalent clear or blue passivations to give a trivalent yellow coating over zinc electroplated deposits.

  • COLDIP® TRI-V

    Economical trivalent blue passivation for use over zinc electroplated deposits. Operates at a low product concentration with high tolerance to trace impurities. Provides minimal corrosion resistance and does not contain cobalt.

  • COLDIP® TRI-V 120

    Trivalent blue passivation for use over zinc electroplated deposits needing medium to high corrosion resistance. Flexible operation allows for adjustable immersion time and product concentration. This product contains cobalt.

    COLDIP® Tri-V 120 Features & Benefits Sheet

  • COLDIP® TRI-V 200 UB

    “Ultra-Blue” trivalent passivation for use over zinc electroplated deposits. Provides high corrosion resistance and color intensity on acid or alkaline zinc deposits. Flexible operation allows for use in a wide variety of plating installations.

    COLDIP® TRI-V 200 UB Features & Benefits Sheet

  • COLDIP® TRI-V 400 CL

    Economical trivalent clear passivation for zinc and zinc alloy electroplated deposits. Provides low to medium corrosion resistance and minimal zinc plate dissolution. This product contains cobalt.

  • COLDYE YELLOW 250

    Concentrated liquid dye that provides an intense yellow-gold color. Added directly to trivalent clear or blue passivations to give a trivalent yellow coating over zinc electroplated deposits.

  • COLDIP® TRI-V ZnNi TRUE BLUE 1000

    Trivalent blue bright passivation for use over zinc-nickel electroplated deposits. One component system for ease of use that that provides additional corrosion resistance to the underlying alloy deposit. This product does not contain cobalt.