White PTFE Thread Seal Tape 10pkProvides watertight seal for water-pipe fitting and installation work. Helps prevent bi-metal corrosion in threaded joints. Lubricates threaded joints during assembly and helps prevent bi-metal corrosion. Suitable for cast iron, steel, alloys, plastic, brass and ceramics. Length 12m. Complies with BS 6920-1:2000 and BS 7786:2006.