Recommended for brazing thin sheets, extruded shapes and corner joints. Used extensively in production and maintenance brazing of aluminum furniture, truck and trailer bodies, window frames and aircraft instruments.

Procedure

Clean joint area. Recommended joint clearance is .006" to .010". All-State No. 31 Flux should be used with 31 bare, either as a powder or mixed with water or alcohol to form a paste. Heat with a carburizing torch flame, keeping torch in constant motion until flux turns to a clear liquid. Apply alloy. Continue to completely fill the joint. Use ample amounts of flux to insure a strong, sound joint. Allow the alloy to solidify and then remove flux by quenching and washing in hot water.