Original
By certification 
Heat shrinkable pressure -sensitive is designed to protecting oil &gas pipeline from corrosion.
Construction: two-layer system
First layer: modified pressure-sensitive adhesive from butyl rubber
Second layer: radiation cross-linked, high density polyethylene, fiber reinforced composite structure.
Feature
→ Suitable for the project of newly built pipe and in-service pipe
→ Short preparation time; only need to remove the vapor in the surface of steel pipe, no demand for preheating
→ It is no need for primer; only need to use wire brush and abrasive tape to clean the surface of steel pipe.
Product Performance
Item |
Test method |
performance |
PE Backing | ||
Tensile strength |
ASTM D 638 |
21.1 MPa |
Elongation |
GB/T1040.2 |
585% |
Hardness, Shore D |
ASTM D 2240 |
52 |
Dielectric Strength |
ASTM D 149 |
31KV/mm |
Volume Resistivity |
ASTM D 257 |
10^17 ohm-cm |
Adhesive | ||
Softening point |
ASTM E 28 |
100 ℃ |
Lap shear@23℃ |
DIN30672 |
72N/cm2 |
Installed Product | ||
Peel Strength@23℃ |
EN 12068 |
32N/cm |
Impact Resistance |
EN 12068 |
≥15J |
Indentation resistance |
EN 12068 |
Pass |
Cathodic disbandment @23℃ |
ISO21809-3 |
6mm rad |
Resistance to thermal ageing |
ISO21809-3 |
|
-Tensile strength |
19.4 MPa |
|
-Elongation |
520% |
|
Ultraviolet Irradiation resistance ratio of |
EN12068 |
|
-Tape strength |
0.94 |
|
-Elongation at break |
0.94 |
|
Product Specification
Diameter |
length |
diameter |
length |
thickness |
108*500 |
470 |
508*500 |
1810 |
Backing material≥1.2mm |
114*500 |
490 |
529*500 |
1870 |
|
159*500 |
610 |
559*500 |
1940 |
|
168*500 |
630 |
610*500 |
2130 |
|
219*500 |
860 |
660*500 |
2300 |
|
273*500 |
1030 |
711*500 |
2450 |
|
325*500 |
1190 |
813*500 |
2770 |
|
377*500 |
1360 |
914*500 |
3080 |
|
406*500 |
1450 |
1016*500 |
3400 |
|
457*500 |
1610 |
1219*500 |
4030 |
http://www.cyg-ct.com/
