Zinc/Nickel alloy deposits maintain an anodic potential to steel, meaning it will corrode before steel, thus zinc/nickel is a sacrificial coating in the same way as regular zinc plating. The difference being that the alloy makes the deposit less active than pure zinc, preventing it from corroding as fast as pure zinc plating. This holds true when the percentage of nickel in the deposit remains below 17% at which time the deposit becomes more noble than the steel and the steel will corrode first. Zinc/Nickel has become popular in the automotive, aerospace, and agricultural industries, along with becoming a replacement for cadmium plating.
Benefits of Zinc Nickel Alloy Plating
- Deposits are bright and burn-free, even at high current densities
- Deposits do not display whickers when bent after plating
- Excellent covering power and uniformity of plate distribution
- Suitable for either rack of barrel plating
- Deposits offer exceptional corrosion protection, even after thermal shock
- Excellent replacement for Cadmium
- Resists Hydrogen Embrittlement
Zinc/Nickel Plating Specifications:
- ROHS and REACH Compliant
- GMW-4700
Zinc/Nickel Plating Abilities:
- Rack
- Barrel
- Size: Max (80”x22”x36”)
Chromates:
- Clear/Blue Trivalent Passivate that is cobalt free
Feel free to request more additional information