... . SGS,MSDS,ISO,FDA,ISO 100% ptfe encapsulated o ringptfe encapsulated o ring Feature100% Virgin marterial and 100% Recycled maretrialCarbon ... weight compound consisting wholly of carbon and fluorine ptfe encapsulated o ring of Properties: Property Value Density2200 ~ 2300 kg ... °CProduce Max. Temp390 °CCompressive strength 1% deformation 400-450 N/mm2 Elongation at break 210-400 % Hardness50-60 (shoreD) ...