3M™ Scotch-Weld™ Epoxy Adhesive 2214 Hi-Density/Regular are designed to provide high strength, higher temperature resistance and smooth bond lines. One part, 250ºF (121ºC) curing, 100% solids, these high performance adhesives are designed for bonding metals and many high temperature plastics such as fiberglass reinforced plastic, polyester and phenolics. - 3M Scotch-Weld high density epoxy adhesive 2214 products are one-part, 250 °F (121 °C) curing 100% solids. These epoxy adhesives have a paste-like consistency, designed for bonding metals and some high temperature plastics such as carbon fiber epoxy composites and phenolics.