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Can I use JB Weld on a radiator? I have a leak on the exterior part of the radiator; not the coils, can I use JB Weld on this to repair it? The reason for asking is because of the flashpoint being 200 degrees.

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I've done this and had little success with it while others I've talked to said it worked. Call a few auto parts store and see if they know of any plastic welders in the area. Most people do not know that such a thing exists and it could end up being a relatively inexpensive solution. If you do have to get a new radiator be sure to take your old one to the scrap yard. Depending on the amount of copper in it you could put $20 or $30 in your pocket.

Posted on Mar 16, 2011


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