It is an alkaline cyanide-free zinc-nickel alloy plating process, which can obtain zinc-nickel alloy coatings containing 12 - 16% nickel, it is an improved zinc-nickel alloy additive based on SLOTOLOY ZN 80, which is especially suitable for barrel plating and also for plating of difficult-to-plate die castings, it has excellent metal distribution and constant alloy composition over a wide range of current densities, as well as very good dispersing ability, the coating Transparent passivation with trivalent chromium passivation SLOTOPAS ZNT 70 and black passivation with SLOTOPAS ZN 300, better salt spray effect in combination with our SLOTOFIN range of sealing products.