PRO XL  ULTRA  PRO  ETCH  Grey  Primer  Aerosol   (500ml)Model No. ULTRA PRO ETCHAn outstanding all-purpose epoxy etch primer that provides excellent adhesion and corrosion prevention on sheet steel, zinc-coated steel, aluminium and anodised aluminium. It is very fast drying with excellent flow out and can be used wet-on-wet with a super smooth finish. Also available in a 1 litre tin.