brightspark
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thanks to Gordon I have some 2 .not everyone has the gear to weld aluminium and its not cost effective to go get it done and you cant just repair it there and then 
- Thread starter islandjj
- Start date
Interesting that this thread popped up this week. I'd seen something called Alutight demo'd at an autojumble and was very impressed, been looking for a cheaper alternative for garage use (weekend hobbying, anything more then I'd just TIG it at work)
Ordered a metre of this:
Clicky
For £2.50 posted can't complain for a tester. This came today so will have a play tomorrow.
One thing, been noted in this thread about the materials hardness and difficulty cleaning/ dressing. What's it like for machining?
Would be beneficial (cost-wise) to make components out of a number of parts, alu braze it and then machine back to a final finish. This would help me not waste big bits of my materials stash.
Ordered a metre of this:
Clicky
For £2.50 posted can't complain for a tester. This came today so will have a play tomorrow.
One thing, been noted in this thread about the materials hardness and difficulty cleaning/ dressing. What's it like for machining?
Would be beneficial (cost-wise) to make components out of a number of parts, alu braze it and then machine back to a final finish. This would help me not waste big bits of my materials stash.
That looks similar to the stuff that that Swedish guy has been selling for years at many of the car shows here in the UK, last time I saw him, it were £15 a meter.
Gareth J
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The stuff that you sort of have to scrape through the thin oxide layer on the base metal, through a puddle of the "solder"? I found watching a video or two on YouTube about how gallium digs into Aluminium kind of helpful. Not sure if the process is related in any way, but it seemed to help it make sense to me
Yes, Alutight. I saw him at Rufforth (where Brightspark goes too!) a few months ago and I've seen video posted on here when I did a search and it's the same guy.
brightspark
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I thought he was a craut not Swedish he gets upset if you tell him its the same as technoweld 
Matchless
I started with nothing, still have most of it left
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I have used Lumiweld and Technoweld plus the Swedish guy's stuff quite often, it is all basically the same, you can weld mazac with it but there is only a very small temperature difference so you have to be very careful, also the mazac tends to grow when heated to within a few degrees of it's melting point, I have used it to "weld" a brass oil union into a set of Matchless crankcases, to stop oil leaks from a TIG welded set of 1929 AJS cases, and my greatest success was to weld up a blow hole / casting defect inside the inlet port of a BMW E30 325i head, was through to the water jacket, totally impossible to get to with TIG, MIG, torch etc. but heated the head in a big oven and used technoweld, was still running years later, also repaired countless broken cam caps on many BMW diesel engines (no TIG then) highly recommended for certain jobs!
brightspark
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its good stuff . just get some practice in though on some scrap ally . a bit difficult at 1st but you soon get the idea
