Features:For Universal Braze Welding Applications - COMWELD Copper and Brass Flux is specially developed for the braze welding of copper, brass and bronze and the brazing of copper,steel, etc. - COMWELD Copper and Brass Flux is particularly suitable for use with COMWELD Manganese Bronze, Tobin Bronze, Nickel - Bronze and Silicon Bronze rods. - Specs:Procedure:The parts to be brazed must be clean with all traces of paint, oil and grease removed. Dip the heated end of the filler rod into flux as required. Flux may be mixed with water into a creamy paste and applied to rod and work before commencing. Wait until both edges of the joint begins to melt then apply the fluxed rod. Continue by melting each edge of the joint and the rod simultaneously. - Flux Removal:Wire brush cup wheel (on an angle grinder) or wire brush with hot water, or dilute hydrochloric acid or nitric acid dip, followed by a water rinse.