This is a DYN5111 Aerosol Self Etch Primer. This Mar-Hyde Single Stage Self-etching Primer Aerosol is solvent resistant, has excellent adhesion to alumimum, bare steel, galvanized steel & fiberglass. Can be topcoated with all automotive primers & paint systems. Ready-to-spray pretreatment/primer that provides excellent corrosion protection & creates a superior bond to most metals by chemically etching the surface of the panel.