Uniform Shrinking Heat Shrink Sleeve with good adhesion bonding
1.1 Product profile
HSS ,Two-piece, with separate closures designed for the corrosion protection.
HSS is superior performance heat shrinkable products designed for corrosion
protection on field applied girth-weld joints of buried and exposed steel pipelines
operating up to 80°C (176°F).
The inner layer is two-components epoxy primer which coated on steel pipe;
Intermediate level is special hot melt adhesive ;
Outer layer is modified radiation crossing linking polyethylene backing.
1.2 Features & Benefits:
Heat Shrinkable Sleeves provide great corrosion protection, Superior resistance to
Cathodic Disbondment and excellent durability against abrasion and chemical attack.
The result is effective, good performance of sealing, wide application, easy to operate
and preheating temperature low (50 ºC) ,long term protection against corrosion.
HSS is a wraparound sleeve with a separate closure
Cross-linked backing provides superior abrasion, mechanical and chemical attack resistance.
High performance adhesive provides excellent resistance to Cathodic
Disbondment to ensure long-term corrosion protection.
Just-in-time customized lengths allow bulk rolls to be field cut to protect any pipe size
Open sleeve configuration allows the product to be applied after the pipeline has been welded and cleaned.
1.3 Technical Datas:
Sleeve Operating Characteristics |
Test Method |
|
Test Result |
Result |
Pipeline Operating Temp. |
|
|
Up to 60°C |
|
Minimum Installation Temp. |
|
|
75°C |
|
Mainline Coating Compatibility |
|
|
PE,PP, FBE,HPPC |
|
Adhesive Properties |
|
Softening Point |
ASTM E28 |
|
95°C |
pass |
Lap Shear @ 23°C |
ASTM D1002 |
|
400N/cm2 |
pass |
Backing Properties |
|
Tensile Strength |
ASTM D638 |
|
2600PSI |
pass |
Elongation |
ASTM D638 |
|
500% |
pass |
Hardness |
ASTM D2240 |
|
50 Shore D |
pass |
Volume Resistivity |
ASTM D257 |
|
1x1016 ohm-cm |
pass |
Tape Properties |
|
Tape Thickness |
|
|
2.5mm |
pass |
Backing thickness |
|
|
1.5mm |
pass |
Adhesive thickness |
|
|
1mm |
pass |
Peel Strength @ 23°C |
DIN EN12068 |
|
70N/cm |
pass |
Impact Resistance |
DIN EN12068 |
|
>15J |
pass |
Indentation Resistance |
DIN EN12068 |
|
>1mm@60C |
pass |
Cathodic Disbondment @ 23ºC, 28 days with epoxy |
DIN EN12068 |
|
12 mm rad |
pass |