In early June we came up with a new solder for aluminum, Aero Solder, and it flows and bonds very well and quite easily. 1100, 3003, and 6061 are perfect alloys, but stay away from 5000 series because the flux will not handle it. The flux is non-corrosive and so no cleanup is required.

Beautiful smooth joints just like copper pipe are possible, and it melts at 780F.

Kit contains 2 oz. of flux and 42" of solder wire. It will also join copper to aluminum. Ideal for radiator repairs because it flows or sweats all the way around behind the backside and then runs through the gap and fillets on the underside! In 30 years I have never seen such a reliable product.

	Our solder flows just like soft solder does on copper tube and pipe! The fillet is just visible at the edges of these 3/16" rivets, but take a look at the back side penetration.
	Repairs on motorcycle radiators and some tanks are easy because of the high quality flowing action of this excellent product.