Query: What kind of thread seal tape for compressed air fittings?
Context: The best thread seal tape for compressed air fittings is PTFE (polytetrafluoroethylene) sealant tape. Some good options are the following: Dixon Valve TTB75 PTFE Industrial sealant tape, Vanguard PTFE thread sealant, Supply Giant PTFE air compressor fitting sealant, or Skylety thread Teflon seal tape.