STEEL COATING APPLICATION & FEATURESGEEKAY CHROME ZINC is a single pack, chlorinated rubber based zinc chromate pigmented primer having superior resistance to corrosion, ideally suitable for protection of structural steel, steel shutters, gates, grills, etc COMPOSITION &CONDITIONS The adhesion of GEEKAY CHROME ZINC is greatly impaired if the substrate is not prepared properly. Removal of rust, mill scales, etc. forms an essential part of surface preparation. Thorough scrubbing with wire brushes, grinding, etc are the means of exposing the sound substrate.