Markal® Aluminum Flux Paste
Also solders copper, chrome, brass, and stainless steelAlso works well with tin-silver, 96/4, 94/6, 95/5, 60/40, 40/60 and 50/50 soldersSolders aluminum at low temperaturesUse soldering iron or torch with LA-CO® #60 solder to safely solder aluminum below its melting point