Somewhat dating myself, but when I started in the trade it was common to use hemp as a pipe dope. Joints made with hemp had the ability to swell up. Being organic, the hemp absorbed the water and swelled, “taking up” a leak. This would usually happen in a day or so, and lead to the modern myth of leaks “taking up”. Teflon does not do this.
I have nothing against Teflon, but eventually, it will get to the ocean, and last forever.
Hemp was pulled off what looked like a horses tail. A few strands were wrapped around the threads and lubricated with soap. It was banned in the mid 70’s because of its name.
PFTE or Teflon as it is commonly known, is universally used on just about every pipe thread made globally. I have nothing against Teflon, but eventually, it will get to the ocean, and last forever. Hemp, on the other hand, goes back to nature.
The point I am trying to make is, the next time you make a joint, consider using hemp as dope.