B 57, MIDC Ambad,
Nasik - 422010
Maharashtra INDIA
+91 253 6604873, +91 92251 14066

HiCorP® BK

Black conversion coating for electroplated Zinc

HiCorP® is a new passivation process sequence based on Cr (III) in order to give a black conversion coating on electroplated zinc. This process is especially developed for the improved corrosion resistance required by the automotive industry.   When used under recommended conditions, the combination of HiCorP® BKA with HiCorP® BKB along with Topcoat BK and Topcoat CL results in a salt spray life of around 240 hours (5% white rust) for pure zinc electrodeposits. The time taken for red rust formation is comparable to that of zinc-aluminium flake coatings or zinc-nickel electrodeposits

Technical Document Download