locations. This is especially effective in hard to reach or shielded locations in units which have a complex geometry. A composite of flux and an Al–Si alloy has been made in the form of rods and rings, which obviates the need to apply flux during brazing. However, thefiller rodis ...
Open the pores of the aluminum with a file or sandpaper. Heat the aluminum to 730 degrees or above (you will know because the material will melt outside of the flame on the heated aluminum). Scratch the rod around the area to be repaired and/or use the tinning brush included with your...