Radiator repairable?

[msrdude]

I have a 96 avalon and it is leaking coolant. Almost all of the
coolant reservoir is empty in 2 to 3 days. I found a crack on the
radiator that looks like hairline crack. The crack is
difficult to notice and i tried plastic epoxy but it did not work
maybe because the crack is too small. But i do drive a lot so it makes
sense that the coolant is leaking out a lot; even with a little crack.
There is no other noticeable leaks around the radiator or the
reservoir tank.
I heard that you can use a tie strap and melt it on the crack on the
radiator. The radiator and tie strap are made with the same material.
Is that true? Is there any other way to repair this small crack
because it seems like a waste to replace the radiator

[blkavalon]

ther is a clay type of stick that you can buy from advance auto specialy for radiators and gastanks. i highly recomend you to change the radiator. any repairing will fail someday and you dont want that radiator replacement escolate in to a headgasket repair. $200 for a peace of mind.

[zythr]

Like Bk said just replace the radiator. You could be on the highway going 65 and have all your coolant leak out and be stranded on the highway, not worth the risk

[toyomoho]

Concur. The repair could fail or the radiator now fail much worse at another location. This has happened!

Some radiator shops may be able to replace the tank but compare the costs with a new radiator.