Halox CW-491 Calcium phosphosilicate Halox Functional pigment >> Anti-corrosive Corrosion inhibitor Alkyd Resins Epoxy Resins Vinyl Coatings >> Solventborne Coatings >> Solvent-Free/ High-Solids Coatings >> Waterborne Corrosion Inhibiting Pigments HALOX® CW-491 Phosphosilicate Heavy Metal Free Performance Short Oil Alkyds Medium Oil Alkyds Long Oil Alkyds Water Reducible Alkyds Water Reducible Epoxies Solvent 2K Epoxies High Solids Epoxies Epoxy Esters Etch Primers Latex Emulsions Vinylidene Chloride Systems Phosphosilicate. Used as a corrosion inhibiting pigment for short, medium and long oil alkyds, water reducible alkyds and epoxies, solvent 2K and high solids epoxies, epoxy esters, etch primers, latex emulsions and vinylidene chloride systems. Offers heavy metal free performance.