3M ScotchWeld Epoxy Adhesive DP405 Black is a two-part, 2:1 mix ratio, toughened epoxy structural adhesive which has a 5 minute work life and accelerated cure. It exhibits excellent shear and peel strengths along with good impact resistance and durability. It bonds extremely well to many metal and composite surfaces. It also has lower odor when compared to traditional fast cure epoxies and acrylic adhesives. Features • Excellent shear and peel strengths • Easy mixing • 5-minute work life • Low odor. Please Note: These cartridges are designed to work best with a 50ml cartridge Dispenser. It is strongly advise you use a 50ml Dispenser for this cartridge. This 3M cartridge will fit into any standard ‘Square-Back’ Dispenser. If you do not have one, please check out the “MixPac 50ml Dispenser” here on Amazon.