Silverline PTFE Tape is a non-adhesive tape which can be used with threaded fittings and compression joints on all types of water pipes, including drinking water, up to 85°C. It lubricates threaded joints whilst installing the pipes to enable a tighter and deeper connection, which helps to prevent bi-metal corrosion – no more leaking pipes!Features and Benefits:WRAS Approved25x Rolls of PTFE TapeComplies with BS7786 200612m x 12mm x 0.075mm PTFE water tape is a non-adhesive tape for use with threaded fittings and compression joints on all types of water pipesRemove any dirt, grease or metal shavings from threads. Apply the PTFE tape on the joint following the inclination of the thread overlapping by ½ to ¾ tape width (depending on thickness required). Apply tape with an even firm tension to ensure tight fitting around the thread.Provides 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