The present invention relates to improved compositions for aqueous adhesives and aqueous primers that increase the durability of composites made by adhering elastomers to metal. The photosensitized electrode is fabricated with simple procedure and has low cost. A tuner receives TV radio frequency or optical transmission signals in a plurality of cable channels and passes a viewer usable signal to a signal combiner. The printed circuit board is fastened to the fixing body. The resin material may conveniently be in a packed or a fluidised or expanded bed.