SICHUAN FOREVER RADIATION TECHNOLOGY CO.,LTD
Heat Shrinkable Sleeves For Pipeline Joint Coating
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Heat-shrinkable materials are made up of two components. Firstly, there is an external backing that is composed of extruded and cross-linked polyolefin. Secondly, there is an internal adhesive that is made of thermoplastic materials.
The backing of the material shrinks when heat is applied, and this embosses a level of circumferential compression in the coating. The compression helps to supplement the bonding of the sleeve to the pipe joint surface.
Heat-shrinkable sleeves are designed as a field-joint coating system and are considered to be one of the toughest coating systems available. The system comprises of three main components; solvent-free high-performance epoxy, adhesive base copolymer, and modified cross-linked polyethylene. This design aims to replicate the coated structure and meet the performance level of mil-applied three-layer PE coatings.
The coatings of the heat-shrinkable sleeve are compatible with all commonly used pipe coatings that include coal tar enamel, fusion-bonded epoxy, and polyethylene coatings.
| 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 | ASTM D 638 | 420% |
| 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 | 435psi (3.00N/mm2) @23°C (73°F) |
| Installed Sleeve | ||
Peel to primer @23°C | ASTM D 1000 | 113N/cm |
| Cathodic disbandment | ASTM G 42, 30 days | 8mm @ 65°C (149°F) |
| Hot water immersion | ASTM D 870, 120 days @Tmax | no delamination no blisters or water ingress |
Resistance to thermal ageing | EN 12068, Class C 80 | |
| Low temperature flexibility | ASTM D 2671-C | -25°C (-13°F) |
| Impact resistance | ASTM G 14 | 96 in-lbs |
| Penetration resistance | ASTM G 17, | no holidays @10KV |
| Holiday detection at 5 kV/ mm + 5 kV | EN 12068 ,Class C | no holiday |
| Epoxy Primer | ||
Specific Gravity @ 23℃-A | ASTM D1963 | ≥ 1.5 |
| Shelf life | - | 2 Years |
| Color(Mixed) | - | Black |
Introducing an outstanding adhesive that offers a multitude of functions for your needs. This adhesive allows for a lower installation at pre-heat temperature and is capable of bonding to 3LPE, DFBE, FBE, and CTE. This feature alone presents a great advantage for users, as it makes the installation process less time-consuming and a lot easier.
What's more, this adhesive is proven to have full resistance to shear forces caused by soil and thermal movements. This makes it the perfect solution for structures exposed to constant movement and extreme environments.
But that's not all. Our product also boasts superior cathodic disbondment, hot water immersion resistance, and thermal ageing resistance. These qualities ensure long-term protection against corrosion, making it the optimum barrier choice.
With this adhesive, you can expect to see a significant reduction in time and costs. Thanks to its lower pre-heat temperature, application of a wet epoxy primer becomes much easier and less expensive. Experience cost-efficient and time-efficient installation with our versatile adhesive.
For more detailed instructions, please refer to the Instructions for Use document.
Before applying the epoxy primer, it is crucial to mix both components thoroughly. The mixing process should be exhaustive to ensure the solution's homogeneity. It is recommended to apply the primer to a minimum thickness of 150 µm and cover at least 10 mm of the adjacent coating to ensure proper adhesion. To prevent waste, only mix the quantity of primer that can be applied within the specified pot life.
While the epoxy primer is still wet, the sleeve should be applied. Before the application of the sleeve, preheat the adhesive. After wrapping the sleeve around the joint, the closure patch should be heated and applied. The entire sleeve should be heat-shrunk to fit the joint tightly. To remove any trapped air, post-heating is used to soften the sleeve.
Brand Name: Forever
Model Number: HT60, HT 80, HT 120
Place of Origin: CHINA
Certification: COO, SGS REPORT, ISO MANAGER SYSTEM CERTIFICATES
Minimum Order Quantity: 100 SETS
Packaging Details: Different pipe diameter with different packing for each box
Delivery Time: 7-14 days
Payment Terms: T/T
Supply Ability: 1000 sets per day
Use: Pipe Joints Anticorrosive Protection
International Standard: ASTMD 638,ASTM D 2240,ASTM D 149,ASTM D 570,ASTM D 1000,ASTM D 870,ASTM D 2671,ASTM E 28,ASTM G 14,EN 12068,ISO 21809-3
Color: Black
Compatible Line Coating: PE/FBE/Coal Tar/DFBE
Tensile Strength: More Than 21 MPA
Our heat shrinkable tape is a heat shrinkable polyethylene sleeve that offers excellent corrosion protection for pipeline joints and fittings. It is also known as heat shrinkable polyethylene coating or heat shrink wrapping. It conforms to international standards such as ASTMD 638, ASTM D 2240, ASTM D 149, ASTM D 570, ASTM D 1000, ASTM D 870, ASTM D 2671, ASTM E 28, ASTM G 14, EN 12068, and ISO 21809-3.
