Choose a flux. Very similar to the solder, the flux needs to be specialized for aluminum or for the combination of metals you intend to hitch. The easiest solution is to buy the flux from your very same resource as your solder, as they are possible meant to perform with https://finnlorrs.thelateblog.com/27774875/5-essential-elements-for-types-of-solder-to-use-on-aluminum-radiator