J B Weld On Radiator Crack

Join Date: Sep 2002

Location: WA, USA

Posts: 393

Hairline crack in top of radiator JB Weld safe.

Ok, here goes. My car has been leaking coolant like a Sieve whenever I drive it As it s just about impossible to drive more than 30 mins at a time I live on Maui it hasn t caused any problems yet. Finally I found the culprit.

The top piece of my radiator, the plastic thing about a foot and a half long, half an inch wide, and in inch or 2 tall has a really small hairline crack on it. It s not touching the sides or anything, it s just on the side, about an inch long. I ASSUME that s what causing the problem, as there s a lot of pooling of green liquid all around that lip on the top of the radiator, and no telltale signs of a broken hose.

Now, my question is, what can I do about it. Will a little JB Weld fix it, or should I go hunting at the local junkyard.

Thanks in advance,

-Shakes.

Mar 14, 2012  Today I am showing you some really strong glue called JB Weld/Kwik. I have used this in the past to seal a radiator and the seal lasted longer than the car.

j b weld on radiator crack

Questions Answers for J-B Weld J-B Weld High-Heat Epoxy Putty Stick.

Hairline crack in top of radiator... JB Weld safe?

j b weld on radiator crack

How to Remove a J-B Weld. J-B Weld is a cold welding compound that includes two components. When mixed together, the resulting compound is used to braze, solder.

Re: J-B Weld a Pinhole Leak. Author: e-plumber NY Congrats on an almost leak free job but the joint should be soldered to repair the leak correctly.

j b weld on radiator crack
  • How to Use J-B Weld on Plastic Parts. J-B Weld offers many products, but all of them are some type of adhesive or cold weld product except for their radiator sealant.
  • J-B Weld WaterWeld Epoxy Putty WaterWeld will plug or seal leaks and patch holes and cracks in almost anything. Ideal for repairing plumbing, fuel tanks.