Bonding copper. copper and its alloys are readily bonded with a variety of adhesive types. adhesives are preferred over soldering as they do not heat damage the copper. anaerobic adhesives cure in the presence of metal and absence of oxygen. copper is one of the most reactive metals, so the anaerobic adhesive will set up and cure much more.Centerfire™ thread-on nozzle (small), 5/8 bore, flush tip, copper (10 per pkg) for use with bernard mig guns centerfire™ hd series nozzle cone, 3/4 id, 1/4 recess (10 per.