What are you using to seal fuel fittings and brake line fittings

[mikeinatlanta]

Originally Posted by Pman1961

To clarify what information ACE23 is seeking, we are replacing the rubber brake lines with stainless. Do you use a thread sealer or possibly an anti-seize thread lubricant on the npt fittings at the brake caliper? If so what type? The other fittings in question are npt's that are on each end of the fuel filter. I suggested calling Olthoff as I've read posts with similar requests that leave you scratching your head!!

I see what you mean about the confusion. The first two responses are not correct for sealing npt. first, I question the use of npt for automotive brake and fuel systems, however, if you must, all npt threads must be sealed. the sealer itself will tell you what it is compatible with. Teflon tape is compatible with brake fluid and gasoline, but be very careful to not get it in the lines. make sure you have no tape overlapping the fitting threads.