Dries to a clear, matte finish and maintains the masonry's natural breathable properties Seals in dust and prevents further masonry dust from forming Treated surfaces “breathe” – does not trap moisture Coverage rates vary depending on the surface porosity and texture. For porous, textured surfaces the coverage rate is roughly 175 square feet per gallon. For semi-porous surfaces, roughly 550 square feet per gallon. For dense, smooth surfaces roughly 1,150 square feet per gallon. These are estimates. Test a small area of your wall to determine actual coverage rate for your surface. SCS Indoor Advantage Gold certified. Low odor and VOC compliant with all national, state and district regulations Ready-to-use, waterborne silicone emulsion for use on brick, mortar, natural stone and other porous masonry. Interior Masonry Dustproofer prevents further dusting to recently exposed older interior masonry and provides water resistance to the applied surface. Interior Masonry Dustproofer dries to a clear, matte finish and retains the masonry’s natural breathability properties. Always read full label and Safety Data Sheet for precautionary instructions before use. PROSOCO packages and labels its industrial/commercial products for purchase and use by industrial, professional, and commercial customers. Unless specifically stated on the product package or applicable product literature, PROSOCO industrial products are not packaged, labeled, or intended for sale to individual consumers (ie., the general public). Always read full label and SDS for precautionary instructions before use. PROSOCO packages and labels its industrial/commercial products for purchase and use by industrial, professional, and commercial customers. Unless specifically stated on the product package or applicable product literature, PROSOCO industrial products are not packaged, labeled, or intended for sale to individual consumers (ie., the general public). Always read full label and SDS for precautionary instructions before use.