FWIW I use rectorseal T+2 on gas compressor sites for threaded connections up to 1000 PSI, teflon tape is forbidden on entire site, permatex #2 or rectorseal Tru-Blu for gas fuel system connections on gas turbine power plants to 650 PSI. On potable system connections we use T+2 as it a NSF recognized thread sealant for potable applications. Teflon tape will seal threads but will not prevent stainless fitting galling like the oil base paste will, some times you are lucky with tape, other times it is back weld or cut out galled joint.