The 3M Scotch-Weld™ Urethane Adhesive DP640 is a brown, liquid adhesive designed for industries such as metalworking, signage, specialty vehicles, and woodworking. It comes in a 48.5 mL cartridge, providing a work time of 40 minutes and a full cure time of 7 hours at room temperature. With a shear strength of 2160 psi, it offers a non-sag viscosity. This adhesive is suitable for both indoor and outdoor use, with a storage temperature range of 16°C - 27°C (60°F - 80°F).