Zinc electroplating is electro-deposition of a thin layer of zinc metal on the surface of another metal which is known as substrate. The zinc coating serves as physical protection which prevents rust from affecting the underlying metal surface. Zinc Electroplating provides corrosion resistance by acting as a barrier and sacrificial coating.
Zinc plating is typically used for screws and other small fasteners, light switch plates, and various small parts that will be exposed in interior or mildly corrosive conditions. For use in moderate or severe environments, the materials must be chromate-conversion coated for additional corrosion protection.
There are a number of methods used to apply zinc coatings, and each determines the coating’s thickness and ultimate durability in specific environments. The most commonly encountered types of zinc coatings at our place are as follows:
- ALKALINE NON CYANIDE BASED ZINC PLATING
- EXCELLENT CORROSION RESISTANCE
- UNPARALLED PLATING DISRIBUTION FROM HIGH TO LOW CURRENT AREAS
- EXCELLENT PLATING IN LOW CURRENT AREAS
- THROWS CLOSE TO 1:1 LCD TO HCD
- THE PLATING UNFORMITY PROVIDES IMPROVED SST
- ZINC CRYSTALS IN THE DEPOSIT ARE SMALLER AND HAVE LESS TENSILE STRESS
- GREAT DUCTILITY