Teflon Tape or Teflon Paste

[RobertBrown]

Hydralic lines are not like water lines. They are under such pressure that you cannot seal the threads like you can water lines. The seal has to be metal to metal or with a rubber seal like an o ring. It really depends on what you have and how much pressure you are dealing with to know what type of fittings you use.

Eddie

He's right......again

 

[RobertBrown]

Ive alwasy thought one purpose of teflon tape was to also make it removed easier in the future.(like 30 years ). Is that also true.?

Teflon/pipe dope/tape prevents the threads from locking before they seat. This lubricant allows you to pull the joint tighter than without.
Neverseize is what you would use to prevent a locked threaded joint, not necessarily a pipe joint.

 

[RickB]

Hydralic lines are not like water lines. They are under such pressure that you cannot seal the threads like you can water lines. The seal has to be metal to metal or with a rubber seal like an o ring. It really depends on what you have and how much pressure you are dealing with to know what type of fittings you use.

Eddie

Tapered pipe threads require a sealant in instances where the threads form the sealing surfaces. Doesn't matter which fluid is being contained.

 

[Soundguy]

ntpf or dryseal was that other variant I was thinking of.

eliminates spiral leakage around the deforemed thread flank/root...

 

[lutt]

Sof-set is a good one, we use it on our steering system here at work,but also on everything else that is pipe to pipe. I have used teflon tape for 20 years out here and on the farm on hydraulics,high pressure air,water, lube oil lines,and fuel lines with success. But sof-set is better,easier to use. Just always make sure your fittings are clean, I even wire wheel new steel pipe fittings, the only ones I dont are aeroquip,but I still make sure they are clean. Also sof-set has anti-seize for later down the road when you want to take it back apart. LUTT

 

[Scooby074]

Assuming its pipe thread, my advise is to go with Loctite 592 (paste). While tape can be used, paste is MUCH safer.

 

[Mace Canute]

The Path to a Leak-Free Hydraulic System

http://www.sbp.noaa.gov/resources/engineering/docs/Hydraulic_Systems_Leak_Free.pdf

 

[sixdogs]

The Path to a Leak-Free Hydraulic System

http://www.sbp.noaa.gov/resources/engineering/docs/Hydraulic_Systems_Leak_Free.pdf

Good site and informative thread. So can we assume that the Loctite prduct has none of the little pieces that might break free and bother a hydraulic system? Up until yesterday I used teflon tape but as soon as I can get some of the Loctite product I think I'm done with tape forever.

 

[J_J]

Here is what Loctite recommends for paste and primer..

Loctite®
Fast
Cure 5452™
1265769 50 ml tube
Purple
29,000/200,000
thixotropic
-65°F to
300°F (-54°C
to 149°C)
10,000
7088™
QuickStix™
Primer,
7649™
Primer N™
or
7471™
Primer T™
1265770 250 ml tube
NE

Teflon tape has been banned in a lot of places, so use at your own risk.

And yes, I will use it if it is all I have at the moment.

Main problem is cleaning out all the old tape from the threads, and the fact that NPT fittings should not be used and re-tighten many times.

 

[JoeBuyer]

Since using the red Loctite I have not had a problem. I use the liquid type and make sure I let it cure before using.