Berger 422 - 1 Litre BP White Primer Solvent Thinnable - Berger 422 white primer is oil modified alkyd based solution. It is especially pigmented with micro-fine pigments and extenders. The BP white primer is ideal for plaster surfaces and is also applicable on a wooden and ferrous metallic substrate. The solvent is free from various hazardous substances like lead, mercury and chromium. It has various unique features like excellent whiteness, high opacity, easy brushability, etc. This Berger primer can be applied on patios, porches, roofs, concrete and wooden floors.