Zinc plating involves the electro-deposition of a thin coating of zinc metal onto the surface of another metal object/base-metal. The zinc coating is a sacrificial that prevents rust from reaching the underlying metal surface. Zinc is chosen because of its innate ability to fight corrosion. Zinc Plating can be Clear (Trivalent), Yellow (Trivalent and Hexavalent) and Black. Parts can be baked to avoid hydrogen embrittlement. The thickness for zinc plating can vary from 0.0001” to 0.001” or as per our clients’ request. The expertise developed over the years in addition to the technologies used in constant evolution allows Groupe Altech to remain a benchmark for the quality of work and the service offered to customers.
Olive drab Chromate can be done after Zinc Plating at clients’ request.
Specifications: ASTM B633, PPS 6.2.18, ISO 2081, QQ-Z-325 or as specified by clients with specific requirements.
Materials that can be zinc plated: Steel, Brass and Zinc alloy.
| Type I | As Plated |
| Type II | Coloured Chromate 96hrs (ROHS Trivalent/Hexavalent Not ROHS) |
| Type III | Colourless Chromate ROHS 12 hrs |
| Type IV | Phosphate |
| TypeV | Colourless Passivate ROHS 72hrs,clear HP |
| Type VI | Coloured Passivate 120hrs |
| SC4 | Very Severe 0.001″(FE/ZN25) |
| SC3 | Severe0.0005″(FE/ZN12) |
| SC2 | Moderate0.0003″(FE/ZN8) |
| SC1 | Mild 0.0002″(FE/ZN5) |
Zinc Plating.
Irridite / Alodine
PASSIVATION
Anodizing
Black oxide
CADMIUM
PHOSPHATE
ELECTROLESS NICKEL
SILVER
TIN
Zinc Nickel
DECORATIVE / INDUSTRIAL CHROME
ELECTRO PLATED NICKEL
COPPER PLATING
Electro – Polishing Ultra Sonic Cleaning and Chemical Cleaning of Metals
Sandblast / Glass-Bead /Brushing / Polishing / Masking / Baking
Salt Spray Testing / Adhesion and Thickness Testing for plating Powder and liquid Paint