3M Scotch-Weld™ Epoxy Adhesive DP420 is a black, flowable liquid epoxy adhesive. It comes in a 400 mL cartridge and has a volume of 13.52 fl oz. This adhesive is perfect for bonding in various industries like composite, construction, electronics, and more. It has a shear strength of 4500 psi and a hardness of 75-80 Shore D. The adhesive has a work time of 15-30 minutes and a full cure time of 24 hours at 72°F. It has a mix ratio of 2:1 (base:accelerator) and self-leveling viscosity. The adhesive is flame retardant (UL94 HB) and can be used both indoors and outdoors.