This 2.5L tin of primer and undercoat from Rustins is suitable as a primer on new and bare wood, MDF, plaster, brickwork or cement. Used as an undercoat on primed or painted surfaces and may be overcoated with water or solvent based finishing paints. It is formulated with water borne acrylic emulsion, pigments and extenders. This paint is for use on interior and exterior work. As a primer, it is suitable for new and bare wood, MDF, plaster, brickwork and cement. It has high opacity and can be used as an undercoat on primed or painted surfaces. This paint may be overcoated with water or solvent based finishing paints.