A high solids, inorganic zinc rich primer that protects steel galvanically, eliminating subfilm corrosion. It meets VOC regulations regarding metal filled coatings while providing the proven performance of alkyl silicate zinc rich technology. Recommended where long term corrosion resistance and undercutting corrosion protection is desired. Typical applications include steel bridges, structural steel and tanks where abrasive blasting can be used in surface preparation. Provides outstanding corrosion protection with or without topcoats in typical weathering and marine environments.