Any such thing as in-place pipe dope?
I doubt this stuff will work "after the fact" unless there is a method
to draw the material into the thread plus any contamination might
effect cure.
Gas lines aren't under much pressure. I suspect that the "right stuff"
cold seal it even without turning off the gas. If you could turn off the
gas even chewing gum might work.
If you could draw a slight vacuum ...
|