Harris 500K Al-Solder 500 Aluminum Solder Kit: Premium Solution for Efficient Aluminum Soldering Review

Works well and wets easily with billet aluminum which is great. I couldn't glue it to cast aluminum, but that's no surprise. Casts are notoriously difficult to get something to tie with. Welding can also be a real challenge.

Aluminum solder is difficult to use, not because of this product but because aluminum alone is difficult to work with. I use flux and regular solder to repair lipos and replace cells and it works great.

I had the same as the other reviewer. The flux bottle was leaking. (half missing). It looks like Harris needs to upgrade the flux bottle to keep it airtight! The seller replaced the product with no problems, the product itself works as expected. Soldering aluminum is tricky, but this kit really works when many others fail. Would have given 5 stars if it wasn't for the leaking bottle.

This might work if you have 100% access to both surfaces to be soldered. However, do not expect this material to leak or capillary into the joint the way solder flows into the joint of copper tubing. It just builds up in its own molten bubble until you rub the solder through the thick, sticky flux and hit the aluminum surface. The aluminum alloy tried on was 6061 and was heated from below to bring the aluminum up to temperature without burning the flux. The flux also forms a thick deposit that…

Works great with a flashlight as described but not yet with a soldering iron (Hakko with temperature control and chisel tip). I used a regular propane torch on my test pieces, soldered a 1.5mm thick strip of copper to a folded piece of takeaway aluminum container (like a disposable baking pan), and the joint was rock solid. With a soldering iron I couldn't solder the copper to "tin". I think the thermal conductivity is too high and this combination of solder and flux needs an accurate…