Sealing off your petcock

[Airwolfie]

I work in the gas and oil industry and we use white teflon thread tape all the time. Its used to seal threads on things such as grease fittings on frac valves, the things see pressures up to 10,000psi and are used under hellish conditions. They see very corrosive and solvents, chemicals, and acids and hold up very well. I would not be afraid of using the stuff on petcock threads. Just make sure to wrap the same direction you will be turning the threads so they do not unravel and become bunched and also to leave the first thread free so pieces of the tape dont end up in the tank. Hope this helps.

Thanks Powerstroke! You guys rock!

Merry Christmas!

 

[racerdave]

I have used white teflon tape on fuel line fittings etc since the early 70's. No problems. Always wrap it so the exposed tail is following the tightening rotation.

 

[Bucko]

Have a look for "heldite" i bought my tin off ebay,sealed a steel pinlgle race tap to my aluminium tanks no problems after two years!