SMARTCOAT™ 450 High Solids Silicone Coating is a 100 percent silicone-based, solvent-free, single-part roof coating. SmartFlash 450 creates a membrane that is vapor permeable, adaptive to temperature extremes, UV resistant, watertight, and weatherproof. This product exhibits outstanding ponded water resistance for direct bond over architectural surfaces such as low-sloped or flat roofing systems, vertical walls, masonry, granulated BUR/Mod-Bit, granulated APP, concrete, metal, single-ply membranes, and spray polyurethane foam (SPF) systems. This product may be used to re-coat existing silicone roof coatings and existing acrylic roof coatings.