BP Exterior Primer is a specially formulated value for money acrylic primer ideal for places experiencing dry climate and low rain fall. It may be applied on plasters, concrete and other masonry surfaces. The masonry surfaces should be fully cured, dry and free from loose materials. USP: BP Exterior Primer may be applied on plasters, concrete and other masonry surfaces. The masonry surfaces should fully cured, dry and free from loose materials. Ensure that the surface to be painted is not exposed to continuous seepage of water or prone to efflorescence. DIRECTIONS FOR USE: Surface preparation: Remove paint, dirt, loose particles from the surface to be painted using wire mesh. Fill up minor cracks with crack-seal putty. Cracks which are larger than 5mm should to be filled with cement work. Let the surface dry completely. Check moisture content of the substrate. It should be below 12% for superior performance of the primer.