Products / Western Colloid #720 ARC ElastaHyde

A water-based, 100% acrylic elastomeric reflective roof coating that the maker positions as the top coat for its Fluid Applied Reinforced Roofing systems and for existing sprayed polyurethane foam, conventional and modified built-up and metal roofs; reinforced with polyester fabric it forms a complete fluid-applied membrane. The technical bulletin says it meets ASTM D6083-97a and lists white initial solar reflectivity of 84%, thermal emittance of 89%, an SRI of 106 initial and 93 aged, and a dry-film Class A under U.L. 790 and ASTM E108. The product page names White, California Tan and Platinum Gray and a Quick Set (QS) formulation for damp or rainy conditions.