Many fittings, except unions, require the use of teflon tape.
Teflon tape is a solid.
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If you are running natural gas or propane, gas teflon tape. Otherwise, any white teflon plumbers tape is fine.
Teflon tape is a solid.
Teflon tape is a staple in any plumbers tool box. The tape is water proof and does not gum up, causing problems with connection.
No, teflon tape is not sticky and that's for a good reason. -Most people think of teflon tape as a sealant. However it was originally intended for plumbing use as a sealant AND a lubricant so you can get a tighter connection on the pipe joint.
Teflon tape only, no joint compound. Two or three wraps is plenty... Yes agreed, teflon tape will make it easier for repairs in the future
Teflon
3 -5 turns DEPENDING on the thickness of the tape as cheap tape can require up to 8 turns or more
I prefer to buy my Teflon tape from AceHardware.com. They sell both on their own website and on Amazon.com, and their prices are absolutely unbeatable.
No, teflon tape (and pipe dope, for that matter) should never be used on flare fittings. They are designed to seal without tape or dope, and may actually leak if tape or dope is used.