Anarchism is a philosophy that embodies many diverse attitudes, tendencies and schools of thought; as such, disagreement over questions of values, ideology and tactics is common. The compatibility of capitalism, nationalism, and religion with anarchism is widely disputed.
I should have been more clear. The systems where I typically see Teflon used are water systems (either automotive or household plumbing) and pneumatic systems where the tape is used on a tapered male thread. In those cases, the male thread could be tightened without the Teflon tape, in many cases without leaks.
Some businesses use magnetic tape for data backup. These cartridges resemble videotapes and contain reels of magnetic tape for data storage. The sequential nature of the writing process makes retrieving this data a slow process. There are still a variety of removable magnetic media devices available, although few of these see regular use.