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Fixing an aluminum radiator, where find low heat welding rod

Posted By: migsBIG

Fixing an aluminum radiator, where find low heat welding rod - 07/21/22 01:01 AM

So I have an aluminum race radiator that is in great condition, but somehow got nicked and sprinkle a very small leak in one of the tubes. I think I can fix it with sold aluminum low heat welding rod that melts with a torch. Any sources out there that are good quality? Not sure what is a good and what is crap. We had some we used on transmission cases and work great, but ran out and the source we used has been long closed now.
Posted By: NITROUSN

Re: Fixing an aluminum radiator, where to find low heat welding - 07/21/22 01:03 AM

You should be able to solder it.
Posted By: migsBIG

Re: Fixing an aluminum radiator, where to find low heat welding - 07/21/22 01:09 AM

Originally Posted by NITROUSN
You should be able to solder it.
. Would rather use the rod to solder it as I don’t have a soldering gun or equipment. Plus I’d like to have some for future repairs and last minute repairs.
Posted By: NITROUSN

Re: Fixing an aluminum radiator, where to find low heat welding - 07/21/22 01:30 AM

Most repairs can be done with a simple propane torch.
Posted By: BloFish

Re: Fixing an aluminum radiator, where to find low heat welding - 07/21/22 01:46 AM

iagree
Posted By: TJP

Re: Fixing an aluminum radiator, where to find low heat welding - 07/21/22 01:57 AM

might check these guys, their pot metal repair works great LINKY
Posted By: migsBIG

Re: Fixing an aluminum radiator, where to find low heat welding - 07/21/22 02:05 AM

Need one that does not use flux. Melt directly to surface and it binds to it. Similar to this:


https://toinspiration.com/products/welding-wire
Posted By: NITROUSN

Re: Fixing an aluminum radiator, where to find low heat welding - 07/21/22 02:16 AM

Without seeing what you have its hard to say what exactly you are fixing. But if it is what I think I could have it repaired in minutes.
Posted By: Grizzly69

Re: Fixing an aluminum radiator, where find low heat welding rod - 07/21/22 05:13 AM



https://www.harborfreight.com/8-piece-low-temperature-aluminum-welding-rods-44810.html
Posted By: migsBIG

Re: Fixing an aluminum radiator, where find low heat welding rod - 07/21/22 03:06 PM

I found this on Youtube where the test a bunch of no weld welding rods. Pretty interesting results.


Posted By: csk

Re: Fixing an aluminum radiator, where find low heat welding rod - 07/21/22 09:31 PM

Just put some epoxy into the broken tube & then crimp it over, one tube wont affect its cooling ability
Posted By: Mr T2U

Re: Fixing an aluminum radiator, where find low heat welding rod - 07/22/22 12:03 PM

maybe look into this stuff.

https://www.cozymoo.com/products/solution-welding-flux-cored-rods-1?
Posted By: INTMD8

Re: Fixing an aluminum radiator, where find low heat welding rod - 07/22/22 01:36 PM

Not sure if it's an option for you but I've tig welded damaged cores many times, no problem.
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