3m scotch weld cyanoacrylate adhesive ec100 3m gs200044104 scotch weld ec100 is a medium viscosity ethyl cyanoacrylate based adhesive and is suitable for bonding a wide range of materials scotch weld ec100 is specially formulated for high strength general purpose bonding of most plastics rubbers metals and other common materials it is recommended for use on assemblies with close fitting parts and relatively smooth even surfaces 3m gs200044104 scotch weld cyanoacrylate adhesive ec