[Lowfer] Results: Solder the Al.

[Dale Parfitt]

KD7JYK wrote:

> Just tried to solder 6061 T6 Aluminum.  I was told to cut the Al then clean
> the joints with a stainless brush...  I lost my brush so...  I cut the Al
> with a mucky pipe cutter I use for copper and plastic.  No brush so I tried
> sandpaper.  Didn't want to slice a finger so I decided to try soldering it
> without cleaning.  I cut two pieces about 1-1/2" long and put them between a
> clamp end to end.  I dipped the solder into the flux as per instructions and
> heated the 6061 with a propane torch.  I tried once, Al wasn't hot enough.
> I heated it some more, then touched the solder to the samples, and it wicked
> around in about a second and a half, a very shiny smooth bead that only
> fills the gap left by the pipe cutter!!!  I found this to be no more
> difficult than copper!
>
> I am sold, this is my first time in this application with this alloy, and it
> is a perfect as it can get.
>
> Kurt
>

Hi Kurt,
I'll give it another shot. I have the sticks and the Solder-It flux that
apparently has powdered aluminum suspended in the flux. What is the brand you
are using?

Dale W4OP