3M Scotch-Weld Epoxy Adhesive 2216 Gray Part A is the resin component that, when combined with Part B curing agent at a 10:1 weight ratio, delivers a long open working time and flexible yet high-strength bonds. It exhibits outstanding adhesion to a wide variety of substrates, including metals, composites, and plastics, and maintains performance in harsh environments—from -70 °F up to 180 °F. Packaged in a 16 fl oz gray pint can, it ensures consistent mix proportions for reliable, durable structural bonding in demanding aerospace and industrial applications.