With regard to substrate compatibility, some Teflon tapes are designed for use with pipes, tubes, or conduits made of aluminum, black iron, or brass. Other PTFE thread seal tape adheres to chrome, ...
Wipe down threads with a rag if you see oils or moisture on them. Apply sealant tape to male threads (optional) Teflon tape and pipe dope work on their own, but some plumbers prefer to use both. Apply ...