SÜA 15% Silver Brazing Joint Solder Ring for 5/8" O.D. Tubes - (10-PACK)

How to braze with SÜA 15% Brazing Rings:1.- Using abrasive paper or brush, clean all the surface of contact to be brazed, in both the tube and the coupling, make sure there is no contaminants residue or debris.2.- Insert the brazing ring into the coupling and then insert the tube and make sure it makes contact with the ring. Couplings and fitting with a stop are preferable.3.- Heat the tube and fitting uniformly. Oxy/Acetylene, Air/Acetylene, and Propane or MAPP torches can be used. With copper tubes no flux is needed, for other metal like brass, you need to apply flux.4.- Once the ring melts, the silver alloy will flow out by capillary action and will be visible at the top of the joint leaving a uniform fillet around.