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3 LPE Mechanical Protection Heat Shrinkable Wraparound Sleeves
| Place of Origin | China |
|---|---|
| Brand Name | FOREVER |
| Certification | ISO |
| Model Number | heat shrinkable sleeves |
| Minimum Order Quantity | 1 ton |
| Delivery Time | 8 work days |
| Payment Terms | L/C, T/T |
| Supply Ability | 5000 sets/week |
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xProduct Details
| Materials | HDPE | Adhesive | Hot Melt Adhesive |
|---|---|---|---|
| Type | 2PE,3PE | Backing | Cross-linked PE |
| Fuction | Joint Corrosion Protection | Thickness | 2.0mm,2.5mm,2.8mm |
| Width | 450mm,500mm,550mm,600mm | Core Features | Heat Shrink |
| Standard | EN12068 | Matched | Closure Patch And Epoxy Primer |
Product Description
3 LPE Mechanical Protection Heat Shrink Sleeves Materials
The first layer of the joint coating system is a 100 % solids two component epoxy of a minimum dry-film thickness of 150 microns when applied on the steel surface. The epoxy layer is the primary anti-corrosion barrier and capable of corrosion protecting the steel surface on a standalone basis.The heat shrink sleeve provide mechanical protection to the epoxy layer and shall seal onto the epoxy layer and the adjacent line coating
To prevent damage to the adjacent 3LPE line coating, the pre-heat of the weld area prior to epoxy application shall not exceed 80 Degree C. After application of epoxy to joint area, the shrink sleeve shall be shrunk over the epoxied surface while the epoxy is still in a gel state and shall not require post curing of the epoxy layer prior to sleeve shrinking. This is to prevent contamination of the epoxy surface caused by direct flame
Performance Parameter
| Item | Test Method | Typical Value HT 80 |
| Radiation crosslinking PE Backing | ||
| Thickness of PE backing | ASTM D 1000 | 1.4mm |
| Density | ASTM D792 | ≥0.95 gm/cc |
| 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 | 55 |
| 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 | ||
| Sleeve adhesive thickness | - | 1.7 mm |
| 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) 50psi (0.35N/mm2) @80°C (176°F) |
| Installed Sleeve | ||
|
Peel to @23°C @T80°C |
ASTM D 1000
|
113N/cm 15N/cm |
|
Peel Strength of installed sleeve at 80°C (pull rate of 10 mm/min) to pipe surface (steel) to factory coating (PE coating) |
EN 12068 |
3N/cm 3N/cm |
| Cathodic disbandment |
ASTM G 42, 30 days EN12068 Class C @23°C @80° |
8mm @ 65°C (149°F) 6mm 10mm |
| Moisture Vapor Transmission of sleeve at 38°C, 90 % RH | ASTM E-398 | 0.06gm/24 hrs/100 sq.in |
| Soil Stress Creep Resistance of installed sleeve at 80°C | TP-206 | 0.08 inch after 24 hours |
| 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 3.7primer |
| 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 |
|
Ultraviolet irradiation resistance -ratio of -tape strength -elongation at break |
EN 12068 – Annex F |
0.93 0.89 |
| Epoxy Primer | ||
|
Specific Gravity @ 23℃-A -B |
ASTM D1963 |
≥ 1.5 /＜1.0 |
| Dry Film Thickness on steel | ≥150 micron | |
| Pull off adhesion strength to steel at 23°C | ASTM D4541 | ≥15 MPa |
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