Dulux Trade Super Grip Primer is a water-based primer designed for difficult surfaces including ceramic tiles, melamine, glass, anodised aluminium, aged gloss paint, stove enamel, laminate, glossy surfaces and powder-coated metal. For best results, apply 1 coat using a brush, roller or spray. When applying Dulux Trade Super Grip Primer over melamine or powder-coated metal, light abrading of the surface is recommended before application of primer to create a key. This primer can be used on exterior and interior surfaces. It is perfect for tricky surfaces including ceramic tiles, melamine and powder coated metal. The primer and undercoat from the Dulux Trade Super grip range can be applied to interiors using a brush or roller to prepare the surface for painting. It takes 6 hours to dry and will cover 18 m² per litre on average.