Zincoseal 666 S / 608 RE Description Application: A Chromium-free solvent composed of organic polymer and silicium dioxide nanoparticles. The Growel Advantage: It is ideal for applying transparent anticorrosion coatings on metallic surfaces. It can be applied to Zinc-plated Steel, both passivated and non-passivated, galvanized Steel, Nickel, Aluminum and non-ferrous metals. get a quote