Lucas #1010 SUNBLOCK™ White Elastomeric Roof Coating is a 100% acrylic elastomeric roof coating intended for application to concrete, metal, PVC, existing acrylic coated polyurethane foam, asphalt BUR and granule surfaced roofs. A high degree of rubber-like elasticity allows this product to accommodate wide swings in temperature and significant building movement. This product is formulated from 100% elastomeric acrylic polymers. This is a water-based material and must be kept from freezing.