Best Radiator Leak Solution

[Dark Prodigy]

Ok, I have a very small leak in one of my spare radiators, when I have liquid in it there's a small but steady drip coming from somewhere. I have my loop apart and want to add this radiator to the loop. I originally purchased this rad new and when I found out it had a leak, I quickly ordered another one from another vendor instead of working on an RMA-- so basically I'm stuck with it - this was 2 years ago.

So, what's a good solution for fixing a leak in a radiator, is there some sort of liquid sealant I can run inside of it that won't ruin the loop and coolant when I'm ready to run it. Need ideas-- thanks.

[gillbot]

pepper? Can you see/find the leak?

[Dark Prodigy]

Not sure if I can get to it, however what about a liquid sealant I can run on the inside..maybe automotive grade...any suggestions?

[hellcamino]

Why don't you just take it to an automotive radiator repair shop ?

[gillbot]

I'm not sure if there's enough heat and pressure for an automotive style to work. JB weld or solder would be your best bet. You can try the old pepper trick, worst case is if it doesn't work you just flush the rad out.