OlyBond500® is a fast-acting, double component, low-rise polyurethane foam adhesive designed to adhere most insulation types to a wide selection of common roof decks and materials. Place the insulation/cover board into the adhesive and walk into place. Dispensed in a semi-liquid bead, It spreads to several inches before rising 3/4 to 1 inch above the substrate. A chemical cure occurs within approximately 4 to 8 minutes depending on the temperature and weather conditions.