Chromate Conversion Coatings

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Advanced Hexavalent & Trivalent chromate conversion coatings providing superior corrosion resistance and rich decorative iridescent, blue, black finishes for zinc & zinc alloy deposits.

  • Hexavalent Chromate
  • Trivalent Chromate

Hexavalent Chromate

KEMPAS BL SERIES
  • Blue zinc passivation on zinc coatings for better corrosion resistance
KEMPAS IR SERIES
  • Produces yellow iridescent chromate layer over zinc for better corrosion resistance
KEMPAS OLIVE SERIES
  • Produces olive green chromate conversion coating on zinc deposits
  • Good Corrosion resistance of over 150 hours in neutral salt spray
KEMPAS BK SERIES
  • Produces a uniform jet-black coating on zinc deposits
  • Good abrasion resistance
  • Need to use chloride free demineralised water

TRIVALENT CHROMATE

KEMPAS BL 163
  • Clear blue trivalent chrome passivation
  • Consistently produces blue bright finish
  • Economical version of chromate coating
KEMPAS TR 1255
  • Trivalent chrome passivation with silver finish
  • Suitable for both rack and barrel process
  • Excellent corrosion resistance
KEMPAS TRH 2957
  • Yellow chromate passivation to achieve min 200 hrs to white rust in neutral salt spray
  • Wide window of operation
  • Used for both rack and barrel components
KEMPAS TRT 1700
  • Thick white chromate coating
  • Very high corrosion resistance 120-150 hrs
  • Good thermal resistance
KEMPAS TRH 350
  • Rich deep iridescent coating giving excellent corrosion resistance
KEMPAS TR 2375
  • Trivalent chrome passivation producing deep yellow colour finish similar to hexavalent yellow
  • Outstanding performance in salt spray
  • Suitable for both acid and alkaline zinc
KEMPAS BZ 527 AB
  • Trivalent black passivation
  • Suitable for alkaline zinc rack and barrel process
  • To be sealed by duroseal 76 to achieve good salt spray
KEMPAS BZ 671
  • Single component trivalent black passivations for zinc deposit
  • Produces Intense black coating
  • High impurity Tolerance
  • To be sealed by duroseal 76 to achieve good salt spray
KEMPAS STP 118
  • Trivalent white passivation for zinc nickel deposit
  • Consistently produces bright white finish
  • Longer bath life
KEMPAS TRN 928
  • Produces blue chromate finish on zinc nickel coatings
  • Longer bath life, extended dump frequency
KEMPAS BK 610 COMPOSITE
  • Single component brivalent black passivation on zinc nickel deposit
  • Salt spray over 200 hrs to white rust
KEMPAS BK 57 AB 
  • Produces uniform, bright black passivation film on zinc-iron deposit
Why

Industries Served

Fasteners Automotive Heavy Engineering Aerospace, Marine & Defence Cable & Wire Hardware Energy & Electrical Electronics Sanitaryware General Metal Finishing

Sustainability

  • Conversion coatings improve corrosion protection of zinc plated parts

  • Effective passivation allows thinner zinc coatings with good protection

  • Trivalent chromate options offer safer environment alternatives to hexavalent systems

  • Supports compliance with RoHS, ELV, and REACH environmental standards

  • CEffluents can be treated through standard industrial wastewater systems