Ready for your best home improvement project? Waterproofing a retaining wall in your yard? Stripping and staining Grandma’s old rocking chair? Coating the garage floor? In each case, you’ll be applying product to a specific surface: brick, wood, or concrete. Each substrate possesses its own unique properties, including its level of porosity. For best results, be sure to select a product that’s been formulated, tested and recommended for use on your intended surface.