I have more of this solder than I'll ever use after repairing my Magenpan speakers. For 10 lucky people in the USA, I'll send you about 9 feet/3 meters for free.
This works just like normal solder, but it will solder aluminum. You can solder aluminum to aluminum or to copper. Below you will see some 23 AWG aluminum wire joined together as well as a bit of tinned copper 22 gauge hookup wire soldered to aluminum foil. Yes, you can solder to aluminum foil. It's a tin/zinc solder with special flux.
Really as soon as you've tinned the aluminum with this solder, you can then use normal solder to make the joint, it works just fine.
Drop me a PM with your name and address and I'll send some out to you in a letter.
This works just like normal solder, but it will solder aluminum. You can solder aluminum to aluminum or to copper. Below you will see some 23 AWG aluminum wire joined together as well as a bit of tinned copper 22 gauge hookup wire soldered to aluminum foil. Yes, you can solder to aluminum foil. It's a tin/zinc solder with special flux.
Really as soon as you've tinned the aluminum with this solder, you can then use normal solder to make the joint, it works just fine.
Drop me a PM with your name and address and I'll send some out to you in a letter.
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I'm about to build a PPM unit, but the largest diecast alloy box available to accommodate an Earnest Turner stereo PPM is too short in height by about 20 mm.
I was going to buy two and cut 20 mm off one and then attempt to braze it onto the other to increase the too-short dimension.
I was intending to use brazing rod, now 30 years old but which I have used to make alloy boxes from 1/16th alloy in the past, and the flux which is I think borax, and my plumbing torch.
Do you think this stuff will do the job?
I was going to buy two and cut 20 mm off one and then attempt to braze it onto the other to increase the too-short dimension.
I was intending to use brazing rod, now 30 years old but which I have used to make alloy boxes from 1/16th alloy in the past, and the flux which is I think borax, and my plumbing torch.
Do you think this stuff will do the job?
I think it will, I had some luck soldering to a bit of aluminum bar. But it takes a LOT of heat. You might still need to use a torch.
You are very welcome! I hope it works for you. I'm well pleased now being able to solder aluminum. 
