[kustombrad]

I didn't use it on the flare, only on the pipe thread (residual valve, proportioning valve) parts of the system. If you look closely you can see what I used it on. You never want to use it on fuel systems 'cuz it could plug up a jet and leave you walking. I guess I could have gone and picked up some liquid teflon, but I've never had a problem in the areas I'm using it.