Passivations (based on trivalent chromium) protect zinc and zinc alloy coatings and improve the corrosion resistance of the coating systems. Different shades of colour (black, yellow, olive) are available for colour coding of the coated parts.
for all zinc-plated parts (alkaline, acidic or cyanidic zinc) in order to improve cathodic corrosion resistance (CRC).
Produces a transparent, weakly bluish finish on zinc-nickel alloys. SLOTOPAS ZN T 20 is operated at room temperature.
Produces slightly iridescent conversion layers with excellent corrosion protection. Subsequent sealing gives a uniform transparent surface finish.
Produces slightly iridescent conversion layers on zinc and zinc-iron. Reduces inside corrosion. Subsequent sealing gives a uniform transparent surface finish.
Thin Layer Passivation for zinc-nickel alloys. Excellent corrosion protection. Free of flouride.
Black chromating for electro deposited Zn-Ni layers which form deep black, uniform surfaces.
Intensive yellow passivation without any dye.
Produces dark conversion layers on zinc-nickel alloys. Gives a uniform black surface finish when followed by a sealant.
Passivation SLOTOPAS Z 30 T forms on every zinc plated surface an intensive bluish, chromium(VI)-free protection layer with extraordinary good corrosion behaviour.
Produces black conversion layers on zinc-iron alloys .Subsequent sealing is recommended.