Bondloc b401 is a medium viscosity cyanoacrylate it bonds metals plastics wood ceramics rubber leather card glass and many other materials cyanoacrylate adhesives cure through reaction with moisture held on the surface to be bonded they need close fitting joints and usually solidify in seconds which has resulted in the universal generic name of superglues curing is started the by film of moisture found on most surfaces which is usually slightly alkaline and it is this alkalinity which causes the