... -chemistry corrosion resistance 4.SGS,ROHS,REACH,ISO PTFE Fine Powder DF-203PTFE (POLYTETRAFLUOROETHYLENE) is one of the most important plastic ... )ororganic impurity(>2mm)White sheetsurface, fiber isaverage, no graveland metalic powder,allow 0.5mmorganic impurity.2Tensile Strength,(Mpa)»28.024.020 ... is apt to make the resin bind together. PTFE FINE POWDER DF-203