A recently installed outdoor backup power generator has 3/4 inch pipe
exposed to the local climate, which is snow and ice for about 6 months of
the year, and rain for another 2 months or so. The fittings have already
begun to show rusting even though they have only been installed for a few
I am asking whether a protective coating of paint or something else makes
sense, and if so, what to use. I am also concerned that some of the
"obvious" choices like Rustoleum paint will seep into the fittings and
compromise the pipe dope / joint sealing. It seems that Rustoleum's primary
ingredient is "petroleum distillates" and this may act as a solvent on pipe
I appreciate any suggestions as to how to proceed.
This what I was told by a Home Inspector. Anything down stream of the
meter [gas] is the home owner's responsibility. So I used an oil
based paint to match my house. As for solvents in the paint, I had to
work with common sense, or my version of it. :) Pipe dough exposed
is not doing anything, and any solvents in the paint will evaporate
before they had a chance to work on the dough sealing the threads.
Now I'm not a paint expert, just telling you what I did.
tom @ www.Consolidated-Loans.info
Painting is done all the time, in fact it is a legal requirement in
commercial/industrial installations to paint the gas pipes with bright
yellow paint to identify them. They normally use oil base Tremclad or
Rustoleum paint for this job. You can choose a colour to your liking.
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