ptfe sealing tape made from 100% pure PTFE(Polytetrafluoroethylene) resins. Blue , yellow , red. ptfe thread sealing tape Description:1.made from 100% pure PTFE(Polytetrafluoroethylene) resins. Physical Properties:Temperature Range -240 to +260Tensile Strength 10 Mpa (1500ps) minElongation 50% minpH range 1-14 size:Width:12mm 19mm 25mmThickness:0.075mm, 0.1mmLength: 5m-50m