Dynafin BZ is a blackening process that produces a black oxide finish on zinc and zinc alloys. The coatings produced with Dynafin BZ are jet- black, adherent, chemically and heat stable. Applying oil, wax or a lacquer should be used to enhance the corrosion protection.
Blackening process that produces a jet-black inorganic oxide finish to zinc surfaces including electroplated zinc, sheet zinc and zinc base die castings.. The coatings produced with Dynafin BZ-2 The coatings formed are from 0.00004 to 0.00008 inch thick and withstand normal handling and wear. The coatings should be protected with wax, oil, or lacquer.