One that is diesel, BD, oil, and coolant resistant?
I use this for both heat exchang and fuel feed, and they are weeping...

I found "TFE Paste, Pipe Thread Compound with Teflon" on the BD site...
Any thoughts from you good people?

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Think Alternative Energy!
300CD '80 (now gone but not forgotten...)

I've used the pipe thread sealant with Teflon to seal 1500 psi stainless pipe threads. It should be fine on brass.

However, I trust that you are trying to seal brass pipe threads. If you have brass compression fittings, there is no sense using any sealant on the threads because the threads don't make the seal.

Yes Brian,
these are the standard pipe threads.
I sure don't want any of that sealant to find its way to the IP...

__________________
Think Alternative Energy!
300CD '80 (now gone but not forgotten...)

Just use very little of it. The tendency is to put too much on and have the excess be pushed off. If it does this on the inside of the fitting, you might not be too pleased if it breaks off later.

I would try to use NO SEALER on any fuel line. I would rely on clean threads and proper tightening.

The high pressure injector lines use no sealer, and they don't leak, so I don't understand why you would need to use a sealer elsewhere.

Household water pipe, with cast fittings and lots of tolerance (slop) need sealer, but I don't understand why automotive fuel systems would.

My uninformed opinion, and $0.02 worth of comment.

Best Regards,
Jim

Injector fittings are compression-type fittings where the seal is made between the flare on the end of the tube and the fitting on the pump and injector. The threads are not involved in the seal, only in applying pressure to the sealing surfaces. The type of fittings referred to in this thread, however, utilize the threads as sealing surfaces.

All that being said, I do agree that you can at times get by with no sealer, just good tightening if you have quality fittings and they are very clean. I, however, always use plenty of thread tape, carefully applied, and have never had a problem.

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Keep everything as simple as possible-but no simpler--Albert Einstein

Um, forgive me if I'm wrong here, but isn't teflon tape, liquid teflon, and other pipe thread compounds really used as a lubricant, so you can tighten the connection up tight enough to take advantage of the tapered threads sealing aginst themselves?
I think the only real sealing agent is ExPando, and once you use that, you may as well cut the joint out if you ever have to seperate it again.

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Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport

There are products specifically intended for use in fuel systems. Bakerslube, EZ Turn Lubricant, and Sealube are examples. All available at www.aircraftspruce.com.