Thread Sealing Tape?

   / Thread Sealing Tape? #41  
I have used teflon tape on hydraulic fittings for over 30 years and have never had a problem , I do a neat job or try to and have had zero issues.
I'm not one to say teflon tape is bad... but I worked for Teleck who is now Terex. They switched to dope after finding tape in spool valves.
 
   / Thread Sealing Tape? #42  
For fuel or oil application on pipe threads I use a dab of Permatex Aviation Form A Gasket.
 
   / Thread Sealing Tape? #43  
Teflon tape won't cause any problems if the person applies it PROPERLY. I've used it in automotive in many applications for about 50 years now and have never had a problem whereas I've seen guys apply it IMPROPERLY and cause the mentioned problems.
 
   / Thread Sealing Tape? #44  
Yes Teflon tape can be used successfully, but it also can cause serious issues.
In most manufacturing plants, a Japanese manufacturing practice called Polk-yoke is commonly used when setting up standard manufacturing processes. Polk-yoke is simply designing a process so that the operator can't do it wrong. IE: it only goes together one way, all the screws are the same size, etc...

Polk-yoke your assembly and don't use Teflon tape, use a product designed for the application to make sure you don't have problems.
 

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