Rustins quick dry galvanised metal primer rustins galp500 this 500ml tin of galvanised metal primer from rustins is a quick drying low odour metal primer suitable for indoor and outdoor use containing anti corrosion additives it is ideal for use on bare and galvanised metal such as metal steps hand rails corrugated sheets and metal shiplap prior to applying a top coat rustins galp500 quick dry galvanized metal primer 500ml