Rust-Oleum Adhesion Primer should be used on galvanized steel, stainless steel, aluminium, copper, glass, porcelain and other smooth, dense surfaces followed by Rust-Oleum Hard Hat Topcoats. Intended for small maintenance jobs. Should be used in light industrial exposures, normal humidity and interior applications. Durable adhesion to galvanised, stainless steel, aluminium, copper, hard PVC, glass and ceramics Ready to recoat after 30 minutes (within 24 hours). Ideal with HARD HAT® topcoats. Transparent blue appearance. Special fan spray nozzle for a uniform application. Large coverage: 5.5 m2 per aerosol