Atlas Roofing Corp., Atlanta, introduces Fastac, a high-performance, fast acting two-part polyurethane adhesive for use on a wide variety of substrates. This low-viscosity water-blown spray adhesive offers high bonding strength and a wide temperature application range. The product bonds to polyiso, fiberboard, concrete, gypsum board, wood, painted or galvanized steel, smooth or prepared gravel BUR, capsheets, smooth or granulated modified bitumen, polyurethane foam and other related clean and dry surfaces. The adhesive can significantly reduce labor costs, as well as enhance the thermal performance of the installed roof system.