Forney Super Sil-Flo Brazing Rod A brazing alloy that is ideal for large and small copper tubing installations. Self-fluxing on copper. Typical applications include refrigeration control valves copper and brass , joining copper wires to rotor bars, electrical connections, radiant heating systems, air conditioning units, hot and cold water lines, and heat exchanges. T-joints, swage joints and sleeves, couplings on return bends and condenser fittings. Sil-Flo is not recommended for ferrous metals such as iron or steel. It is only for copper base metals as an effective economical alternative to copper-silver alloy rods. Diameter 1/8 In., Length 18 In., Tensile Strength 40,000 psi, Melting Point 1200 F, Pkg Qty 1, Package Type Box WARNING This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.