HTLP 80 Heat Shrink Sleeves With Closure Patch For Pipe Joint Coating
HTLP 80 Heat Shrinkable Sleeves With Closure Patch For Pipe Joint Coating
Open type Heat Shrinkable Wraparound Sleeves is superior performance heat shrinkable products designed for corrosion protection on field applied girth-weld joints of buried and exposed steel pipelines operate up to 80 ℃,The inner layer is two-components epoxy primer which coated on steel pipe; Intermediate level is special hot melt adhesive ;outer level is cross linked polyethylebe backing.
Features & Benefits
●Heat shrinkable wrap Sleeves provide great corrosion protection, Superior resistance to Cathodic Disbandment and excellent durability against abrasion and chemical attack. The result is effective, good performance of sealing, wide application, easy to operate and preheating temperature,,long term protection against corrosion.
● with a separate closure
● Cross-linked backing provides superior abrasion, mechanical and chemical attack resistance.
● Excellent resistance to Cathodic Disbondment to ensure long-term corrosion protection
● Just-in-time customized lengths allow bulk rolls to be field cut top protect any pipe size
● Open sleeve configuration allows the product to be applied after the pipeline has been welded and cleaned.
| Product properties | ||
| Property | Test Method | Typical Value HT 80 |
| Radiation crosslinking PE Backing | ||
| Tensile strength | ASTM D 638 | 3200psi (22MPa) |
| Elongation | ASTM D 638 | 550% |
|
Thermal ageing 1) 150°C 21d elongation 2) Tmax +20°C 100d E100/E70 |
ASTM D 638 EN 12068 |
420% 1.08 |
| Hardness, Shore D | ASTM D 2240 | 52 |
| Shrink force | ASTM D 638, 150°C (302°F) | 43psi |
| Dielectric strength at 23°C | ASTMD 149 | 825volts/(33KV/mm) |
| Moisture absorption | ASTM D 570 | 0.05% |
| Hot Melt Adhesive | ||
| Softening point | ASTM E 28 | 125°C (257°F) |
|
Lap shear
|
ASTM D 1002 EN 12068, @ 10 mm (0.40")/min. |
435psi (3.00N/mm2) @23°C (73°F) 26psi (0.17N/mm2) @80°C (176°F) |
| Installed Sleeve | ||
|
Peel to primer @23°C @Tmax |
ASTM D 1000
|
113N/cm 15N/cm
|
| Cathodic disbandment |
ASTM G 42, 30 days EN12068 Class C @23°C @80° |
8mm @ 65°C (149°F) 6mm 10mm |
| Hot water immersion | ASTM D 870, 120 days @Tmax | no delamination no blisters or water ingress |
|
Resistance to thermal ageing(100d/100°C) Peel strength layer to layer P100/PT Peel strength to pipe surface P100/PT |
EN 12068, Class C 80 |
3.3 3.7 |
| Low temperature flexibility | ASTM D 2671-C | -25°C (-13°F) |
| Impact resistance |
ASTM G 14 EN 12068, class C |
96 in-lbs >15J no holiday |
| Penetration resistance |
ASTM G 17, EN 12068, Class C |
no holidays @10KV >0.6mm @ 80°C(176°F) |
| Holiday detection at 5 kV/ mm + 5 kV | EN 12068 ,Class C | no holiday |
| Epoxy Primer | ||
|
Specific Gravity @ 23℃-A -B |
ASTM D1963 |
≥ 1.5 ＜1.0 |
| Shelf life | - | 2 Years |
| Color(Mixed) | - | Black |
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