DEFENDER was developed as a water and stain resistant sealer designed for porous to dense concrete, brick and masonry surfaces. DEFENDER will dry invisible while leaving the surface with its original look. DEFENDER will resist oil and grease stains, rust stains, moss, mildew and spalling problems associated with freeze/thaw cycles. DEFENDER provides an excellent barrier against moisture penetration. DEFENDER will not wear away, fade, yellow, crack or peel. DEFENDER is highly alkaline resistant and can be used on dense surfaces like marble, granite, limestone, travertine, polished stones, concrete, brick, pavers, slate, tile and natural stone. DEFENDER is easy to apply and dries in 30 minutes to 3 hours, it is rainproof in 12 hours and the cure time in anywhere from 48-72 hours.