What are the differences between plumbers tape and Teflon tape, and which one is more effective for sealing pipe joints?

Plumbers tape and Teflon tape are both used to seal pipe joints, but they have different compositions. Plumbers tape is made of a thin metal strip, while Teflon tape is made of a thin, flexible material. Teflon tape is more effective for sealing pipe joints because it is more flexible and can conform to the shape of the joint better, creating a tighter seal.