No.

Item

DF-31A

Grade 1

Qualified

1

Appearance & Cleaness

Test impurity quantity that equal or less than 1mm doesn’t exceed two.

Test plate is white and homogeneous, no metal impurities, total impurity quantity≤6 impurity quantity (0.5~2mm) ≤ 2, impurity quantity (2~3mm) ≤ 1.

2

Tensile Strength(Mpa) ≥

20

3

Elongation at Rupture (%)≥

200

4

Volume Density(g/L)

800 ± 100

5

Average Grain, (um)

600 ± 100

6

Moisture Content (%)≤

0.04

7

Powder Flow (g/min) ≥

700

8

For Fabrication

Auto press molding and ram extrusion

9

Usage

The resin is used to auto press molding and ram extrusion all kinds of rods, pipe etc

10

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.