Twineflon Universal PTFE Thread Sealant Non flammable, wide operating temperature range and tested to 100 bar, Twineflon is approved for use with hot and cold drinking water by WRAS and can be used without restriction to seal pipes for all gases and fuels, including oxygen, propane and butane in both gaseous and liquid form. 100% pure PTFE thread sealing cord for use in water, oil and gas installation WRAS approved Operating temperature range -200°C to +240°C EN751-3 approved for use on gas installations Safe for use with oxygen Non flammable Unlimited shelf life Supplied in 175 m lengths via hand held dispenser with 360° cutter and integral lubricant applicator 密封胶和衬垫