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PTFE Presintered Resin DF-21A
PTFE (POLYTETRAFLUOROETHYLENE) is one of the most important plastic resins which has been applied in many fields,for its special properties, such as : chemical resistance and stability ;High continuous service temperature (260ºC); Very lubricious - lowest coefficient of friction of any polymer; Chemical and solvent resistance; Electrical resistance; High melting point (342ºC/648ºF).
PTFE presintered powder
Quality Specification
NO. | Item | PTFE presintered resin DF-21A |
1 | Smoothness cleaness | Clean and white surface,no metal impurity,the impurity quantity from 1mm to 3mm does not exceed two,without impurity which exceed 3mm. |
2 | Melting point (°C) | 327±5 |
3 | Volume density(g/L) | 500~800 |
4 | Flowing property(g/min)≥ | 450 |
5 | Average Grain(μm) | 500~900 |
6 | Machining method | Ram extyusion |
7 | Main usage | The presintered resin is suitable for continuously extruding of all type,Pushing and pressing PTFE rod,tube and special shape. |
8 | Packing Storage Transportation | 1,PTFE is packed in double layer PVC bags inside and hard circular barrels outside.On the barrel,there should label and quality certificate,on which there are brand,tradmark,executive criterion,type,grade,lot NO.,net content,pack date,checker and packager. 2,PTFE should be stored in clean dry warehouse to prevent from dust,moisture,etc. impurity. 3,The products are transported according to non-dangerous goods.Heat,mositure,freezing and strong shock should be avoided during transportation.Over-bumpiness and cpmpression is apt to make the resin bind together. |
PTFE Presintered Resin DF-21A