steam radiators leaking

Where is the leak ?, vent , valve ? I woulnt put anything in the boiler, as steam systems have vents that close under temp and pressure.

"Betsy" wrote in news:pxrYb.9$ snipped-for-privacy@news.abs.net:

I had a crack in one of my radiators and couldn't find anything that would fix it, including several kinds of liquid metals (though the trick of letting the system draw a vacuum to suck the filler into the crack might work). I figure it's the combination of heat, pressure and steam that screws up the cure. What did work was Permatex Gas Tank and Radiator Repair. You can get it or something like it at an auto supply store. It's a roll of epoxy with a core of hardner; knead it to disperse the hardner throughout the epoxy and force it into the crack and let it harden. I had to turn off the radiator for a couple of hours to let it set. No leaks and it's been about two months now in a heavy duty heating season.

_______________________________________________________________________________ Posted Via Uncensored-News.Com - Accounts Starting At $6.95 -

I had a radiator that was leaking from the bottom, where two sections met.

I used Loctite Epoxy Putty Sealant (SM-100) that I got from the local hardware store for under $5. This dries to a white color that can be painted to match the radiator.

The secret is to clean every bit of dirt and grime and flakey rust from the area around the leak. Use a damp sponge and a wire brush. This may take a while with an old radiator. It will also help you in locating the leak.

Make sure the area is dry before applying the patching material.

And if you have any way to reduce the air pressure inside the radiator so the putty will be sucked into the crack, do so.