Twin Jet is a two-component, low-rise polyurethane insulation adhesive applied in beads for adhesive attachment of Firestone-approved roof insulations to acceptable substrates per Firestone specifications. Twin Jet is packaged in portable pressurized canisters, allowing extrusion of Part 1 and Part 2 to the gun and mix tip assembly. Use Twin Jet when ambient and substrate temperatures range from 40° F (4 °C) to 100 °F (38 °C). Firestone Building Products standard warranties are available up to 30-year warranty period. Please refer to the Firestone website at www.firestonebpco.com for specific warranty requirements.