Better to use pipe on the wrenche handles which give you the added leverage.
"Stormin Mormon" wrote in message
...
The only time I worked with two inch pipe, it took some monster big
wrenches. And a fireman who lifted weights. I can easily imagine the
appeal
of an epoxy patch. One time, myself and my boss both wrenched on one
fitting, and the two of us working together didn't have enough power to
loosen the thread. The job boss, a fireman, did what us two cripples could
not.

One trick I've heard, but not tried. Heat the fitting with a torch. As the
fitting is cooling, use a wax candle to drip paraffin on the threads. The
fitting cools, and sucks in the paraffin, which lubricates the threads.
Please let us know if this does any good.

Christopher A. Young
Learn more about Jesus
www.lds.org
.

"Mikepier" wrote in message
...
The epoxy is made by Permatex. This is the product I used. Dries in
grey color.

http://www.permatex.com/products/Aut...etal_Epoxy.htm

Also the boiler is only 2 years old, but the piping I'm sure is a lot
older. Fortunately the problem pipe can be removed since there is a
union fitting not to far from it, so its not like I have to
disassemble a lot, but it is very heavy pipe, at least 2" and 2-1/2"
steel piping.