Dulux Precision Maximum Strength Adhesion Primer 4L is specifically formulated to bond to a variety of tough to paint surfaces which typically resist coatings. It provides a sound base for topcoats while reducing or potentially eliminating the need for sanding dense, glossy surfaces. This 4L bottle of Dulux Precision Maximum Strength Adhesion Primer will give you the best possible hold when used as a basecoat on any interior or exterior surface. With excellent adhesion properties, it is suitable as a primer, sealer and undercoat.