Dy-Mark Zinc Gal is a zinc rich, high performance heavy duty corrosion inhibitive primer suitable for use on ferrous metals such as steel, iron and galvanised iron. Zinc Gal contains 99% pure zinc pigment in the dry film. It is used extensively in metal fabrication and gives superior cathodic protection to weld joints. Suitable for use on fences & gates, balustrades, rails, ducting and trailers. Zinc Gal conforms to AS3750.9:2005 Type 1. It dies to a matt grey finish.