No.

Item

DF-204

Excellent

Grade A

Qualified

1

Smoothness, cleaness

White sheet surface, fiber is average, no gravel and metallic powder, even sheet texture ≤1 for mechanical impurity (≥0.5mm) or organic impurity (≥2mm)

White sheet surface, fiber is average, no gravel and metallic powder, allow 0.5mm organic impurity.

2

Tensile Strength(Mpa) ≥

28.0

24.0

20.7

3

Elongation at Rupture (%)≥

300

4

Volume Density (g/L)

475±100

5

Extrude pressure(RR100) (Mpa)

9.7±4.2

6

Average Grain, (um)

525±150

7

Moisture Content (%)≤

0.04

8

Melting point(°C)

327±5

9

Standard Relative Density

2.18

10

Thermal Instability Index≤

30

11

Electrical Strength, MV/m≤

2.1

12

Dielectrical Dissipation Factor≤

3×10-4

13

For check

Execute according to requirement of HG/T3028-1999

14

For process

Paste Extrusion

15

Usage

The resin is mainly used for elastic tape, capillarg tub, and the unsintered tape.

16

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., net content, pack date, checker and packager.

2 PTFE should be stored in clean dry warehouse to prevent fromdust, 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-bumpines and compression is apt to make the resin bind together.