BOL430 Chromate-Free Zinc-Aluminum Coating

Product Introduction

BOL430 is a waterborne, environmentally friendly anti-corrosion metal surface coating with a silver-gray coating color. Its main components are flake zinc powder, flake aluminum powder, polyethylene glycol, passivator, additives, silane, titanium compounds and purified water. It contains no toxic heavy metals (lead, cadmium, mercury) or hexavalent chromium, and complies with the EU RoHS directive.

Main Applications

Suitable for surface protection of steel, aluminum and aluminum alloy components. Particularly suitable for anti-corrosion coating of metal fasteners in the automotive, machinery and aerospace industries.

Product Features

• Coating appearance: uniform viscous liquid
• pH: 6.0~8.0
• Density: 1.30~1.45 g/cm³
• Viscosity (Zahn #2 cup): 90s~150s

Performance

Neutral salt spray test: 1000h (8~10 μm film).