Many fittings, except unions, require the use of teflon tape.
You do not need tape on any flared fitting, brake or regular. The brake line and the fittings are different size and thread type than regular copper line and fittings. You can't mix them.
Yes, otherwise you will have leaks
The use of PTFE tape depends on the what you'll be using it for. PVC products dont need as much as what a brass or copper fitting may require
Use the yellow tape. Its specifically for gas. I also use a small amount of pipe dope on the female fittings. Pressure test the new work separately, or if its a small add on use a soap solution to test your work.
Yes, but only if it is necessary.
Many fittings, except unions, require the use of teflon tape.
You do not need tape on any flared fitting, brake or regular. The brake line and the fittings are different size and thread type than regular copper line and fittings. You can't mix them.
Yes, otherwise you will have leaks
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
The use of PTFE tape depends on the what you'll be using it for. PVC products dont need as much as what a brass or copper fitting may require
yes you just have to make sure you put the tape the same direction as the threads. Also be careful not to have the tape before the threads or you will get particles in your fuel system.
If you are running natural gas or propane, gas teflon tape. Otherwise, any white teflon plumbers tape is fine.
Use the yellow tape. Its specifically for gas. I also use a small amount of pipe dope on the female fittings. Pressure test the new work separately, or if its a small add on use a soap solution to test your work.
Teflon tape is a staple in any plumbers tool box. The tape is water proof and does not gum up, causing problems with connection.
There are a number of sealants available to prevent leaks in pipes. If you don't want to use teflon tape, you can use a liquid sealant which will form a seal as it dries.
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.