Aluminium brazing?

I've used a similar kit on two occassions.

First was to an obsolete hinge bracket for a shop door. The repair was entirely sucessful cosmetically, though I was able to re-inforce the item 'out of sight' with a steel plate. (entire shop front now replaced)

Second was to the operating lever / bracket on a hand held spot welder. I had two attempts at a repair, first worked for a short while but then failed, and my second attempt resulted in melting too much of the original bracket away - possibly due to my hamfistedness.

Problem is you usually don't know the composition of the alloy that you are fixing.

AWEM

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This works very well:

I've been using it for years without a failure. Only problem is (with all these materials) is that due to the temperature (400 deg C or so) the adjacent aluminium softens. It can be work hardened with a bit of planishing.

For purely cosmetic filling, use ordinary, lead-free tinmans' solder and the same brushing/scraping procedure as for Lumiweld. Temperature is low enough to avoid softening.

Thanks for the tips guys. Very helpful.