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 weeks.
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 dope.
I appreciate any suggestions as to how to proceed.
Many thanks,
Smarty