[petet16]

Originally Posted by Enright

That's interesting, how would you do it - would you use a blowtorch or something?
I wondered about repair methods when I recently discovered a hole in my aircon radiator, although aircon systems seem to run at a much higher pressure than coolant systems - like about 100PSI. And re-gassing them if the repair doesn't hold isn't cheap either.
Still, could have a bash and try pressure-testing it afterwards to see if it holds or hisses...

I've only ever done it once on a old style brass rad that had a crack around one of the unions, but a blow lamp and silver solder was what I used, not a very pretty repair, but it did seal it.