2x U-Pol Etch Primer Spray Grey Power Can Direct to metal Anti-Corrosive 500mlIdeal for priming bare metal surfacesPromotes adhesion of paint and prevents steel surfaces from rustingTypically applied to rub-through areas prior to painting, on bare metal substrates and over bare seams before application of sealantCan be applied to bare steel, aluminum, galvanized and zinc-coated steels, fully cured paint, polyester body fillers, and G.R.P.U-Pol Power Can Professional Spray Paint Aerosol 500ml Etch Primer featuring a specialised large fan pattern, high output, high opacity and no overspray nozzle.Powercan Etch Primer is a 1K etch primer in ready to use aerosol form. It is used for priming bare metal surfaces to promote adhesion of paint and prevent the steel surface from rusting.Powercan Etch Primer is chromate free. It is typically applied to promote adhesion on rub-through areas prior to painting, on bare metal substrates and over bare seams before application of sealant.