DY-MARK Zinc Guard Cold Galvanising Coating is a zinc-rich protective coating designed to provide long-term corrosion resistance on metal surfaces, making it ideal for protecting welds, repairing galvanised iron, and maintaining bare or wrought iron. With 91% zinc in the dry film, it delivers a smooth high-build matt finish and can be used either as a stand-alone coating or as a heavy-duty primer before top coating in industrial, construction, and maintenance applications.