U-Pol Power can Etch  Primer Spray Paint Aerosol Anti-Corrosive 500mlModel No. PCEP/AL Power Can Etch PrimerUse for priming bare metal surfaces to promote adhesion of paint and prevent the metal surface from rusting.Ideal for rub through areas prior to paintingCan be directly overcoated with a topcoatAnti-corrosive, prevents steel from rusting