... to 10mm Density: 0.8 g/cm3 Expanded PTFE Tape 100 teflon productsPossess all the Properties of teflon , ... sealing materials,May used in diverse pipelines to seal flanges,enamellde products,glass,rubber products,plactice,non ... exchanger,pressure container as linings and to seal their flanges,to seal thefillers of diverse pumps and valves ... tighting force.Width: 3mm to 100mm Expanded PTFE seal tape