Recommended for use on copper plumbing, radiators, air conditioners, refrigerators, marineand electrical applications. Not recommended for ferous metals.

Procedure

Clean parts to be joined. Joint clearances may be up to .005" for best results. All-State No. 21 or All-State No. 110 Flux may be used when joining brass or bronze. Use No. 21 Flux on heavy sections and No. 110 Flux for thin sections. When flux is required, a liberal amount should be painted on the joint before heating. Use a large tip with a carburizing flame for broad heat. When flux turns clear or copper reaches a dull red heat apply No. 23 rod until joint is filled. Do not overheat or remelt. To remove flux use hot water and brush. The copper color can be restored by washing joint area with 10 percent sulfuric acid and water solution. Finse with clear hot water.