Sodium Silicate short term boiler leak remedy?

razzor

Still trying to make it to April with leaking Burnham boiler. 2” horizontal crack in center section. Does anyone have any thoughts on sodium silicate or water glass as a way to stop or at least slow down the leak?
Thanks.

Jamie Hall

Might work. Might also gum up a lot of other bits of your heating system, too.

nicholas bonham-carter

Is the crack above or below the waterline?
For below the waterline leaks, some old time remedies for this were to put a cup of rye seeds into the boiler. As they are so hairy, the seeds would jam into the hole, and stop it up-they said.
Radiator stop leak was another fix, but the smell was awful!—NBC

newagedawn

try some really good silicon caulk, i've had success with that before

razzor

Thanks. Hot water boiler so I guess below the waterline? Can you recommend a good high temp silicone sealer? Also thoughts on JB Weld or another epoxy?

newagedawn

whatever works and what ever gets them to spring, never tried jb weld, try it

hot_rod

I have used the Fernox products a few times with success. I'd suggest against the automotive type radiator sealers, use some product designed for hydronics.

Grallert

I've used Pure Pro Boiler Weld Liquid with great results on water boilers. The success rate for me has been near 80%.
Get it at F.W.Webb