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Item                        DF-201
              Excellent     Grade A     Qualified
Smoothness & Cleaness
White sheet surface, even texture, no gravel and metal powder, 1 for mechanical impurity (0.5m) or organic impurity (2mm)
White sheet surface,fiber is average, no gravel and metal powder, allow 0.5mm organic impurity.
Tensile Strength,(Mpa)24.0  20.7   18.6
Elong. at Rupture(%)350
Volume Density,(g/L)475±100
Extrude pressure (RR100)Mpa 9.7±4.2
Average Grain (um)525±150
Moisture Content.(%)0.04
Melting Point(C )327±5
Stand Relative Density 2.200
Thermal Inst, Index 50
Electric Strength (KV/MM)2.1   -----
Dielectric Dissipation factor 3*10ˉ4
For check Execute according to requirement of HG/T3028-1999
For process  Paste extrusion 
Usage It is suitable for making unsintered tape.
Packing, Storage & Transportation
1.PTFE is packed in double layer PVC bags inside and in hard circular barrels outside. on the barrel, there should be attached label and quality certificate, on which there are brand, trademark, executive criterion. type, grade, lot NO. and net content, pack date, checker, packager.
2.PTFE should be stored in clean dry warehouse to prevent from dust, moisture, etc. foreign matters.
3.The products are transported according to non-dangerous products, Heat ,moisture, freezing and strong shock should be avoided during transportation. Over-bumpiness and compression is apt to make the resin bind together.