Radiation Cross-Linked Polyethylene Heat-Shrinkable Sleeve with Hot-Melt Adhesive for UV Resistant Pipeline Field Joint Anti-Corrosion Coating
Polyethylene (PE) heat-shrinkable sleeves feature a two-layer structure consisting of a radiation cross-linked polyethylene backing and a specialized hot-melt adhesive. For application on steel pipelines, the shrink sleeve is used in combination with a solvent-free, two-component epoxy primer.
The hot-melt adhesive provides excellent adhesion to the PE backing, the steel pipe surface, and the epoxy primer. Upon heating, the PE backing shrinks while the adhesive layer melts, allowing the sleeve to tightly conform to the pipe joint. Together with the epoxy primer, this system forms a strong, continuous anti-corrosion barrier comparable to factory-applied three-layer polyethylene (3LPE) coatings.
This coating system offers excellent resistance to corrosion, abrasion, impact, ultraviolet (UV) radiation, and aging. In addition, it is easy to apply in field conditions.
Primarily used for pipe connection, field joint coating, wrapping around pipes, anti-corrosion of various pipe joints, and pipe repair applications. Suitable for:
- Oil and gas pipelines
- PU insulation pipes
- 3LPE/2LPE steel pipes
- Corrugated pipes
- Fast shrinkage speed
- Excellent waterproof performance
- Superior anti-corrosive performance
- Long service life
- Manufactured using pure PE material and imported adhesive for guaranteed quality
| NO | Test Item | Unit | Performance | Test Result | Test Method |
|---|---|---|---|---|---|
| Material | |||||
| 1 | Tensile Strength | MPa | ≥17 | 19.47 | ASTM D638 |
| 2 | Elongation | % | ≥400 | 626 | ASTM D638 |
| 3 | Vicat Softening Point | ºC | ≥90 | 92 | ASTM D1525 |
| 4 | Brittleness Temperature | ºC | <-65 | <-65 | ASTM D2671C |
| 5 | Dielectric Strength | MV/m | ≥25 | 33.13 | ASTM D149 |
| 6 | Volume Resistivity | Ω.m | ≥1*10¹³ | 1.1*10¹³ | ASTM D257 |
| 7 | Environment Stress Crack | h | ≥1000 | >1000 | GB/T1842 |
| Chemical Resistance (7d) | |||||
| 8 | 10% HCI | Tensile strength | ≥85 | 104.9 | ASTM D638 |
| Elongation | ≥85 | 96.3 | ASTM D638 | ||
| - | 10% NaOH | Tensile strength | ≥85 | 102.1 | ASTM D638 |
| Elongation | ≥85 | 95.6 | ASTM D638 | ||
| - | 10% NaCl | Tensile strength | ≥85 | 108.3 | ASTM D638 |
| Elongation | ≥85 | 94.1 | ASTM D638 | ||
| 9 | Thermal aging (150ºC,168h) | Tensile strength | ≥14 | 20.7 | ASTM D638 |
| Elongation | ≥300 | 630 | ASTM D638 | ||
| NO | Test Item | Unit | Performance | Test Result | Test Method |
|---|---|---|---|---|---|
| Adhesive | |||||
| 1 | Softening Point | ºC | ≥90 | 90.1 | ASTM E28 |
| 2 | Brittleness Temperature | ºC | <-15 | <-15 | ASTM D2671C |
| 3 | Lap Shear | MPa | ≥1.0 | 1.5 | ASTM D1002 |
| Peel Strength (23±2ºC) | |||||
| 4 | Steel | N/cm | ≥70 | 145.6 | ASTM D1000 |
| Primer | N/cm | ≥70 | 205.9 | ASTM D1000 | |
| PE layer | N/cm | ≥70 | 190.0 | ASTM D1000 | |
| 5 | Shear of cured primer | MPa | ≥5.0 | 12 | SY/T0041 |
Heat shrink sleeves are available in the following configurations:
- Pre-cut sleeve and separate closure patch
- Pre-cut sleeve with pre-attached closure patch
- Tape in roll (closure patch to be ordered separately)
Our heat shrink sleeves workshop features state-of-the-art manufacturing equipment designed and manufactured independently by our company.
We also sell heat shrink sleeve equipment designed and manufactured by our company.
Qingdao Huashida Machinery Co., LTD is a manufacturer of series of plastic pipe machines, municipal pipe machines, pipe insulation & anti-corrosion machines, and pipe jointing & anti-corrosion materials, with 21 years of production experience.
Our main products include:
- Production Line HDPE jacket pipe for pre-insulated pipeline (110-2000mm)
- Rigid pre-insulated pipe Production Line
- Flexible pre-insulated pipe (PERT) production line
- Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
- Steel pipe derusting line
- PE pressure pipe/Water Gas supply pipe production line
- PP/PE plastic board/sheet/geomembrane production line
- NBR PVC Thermal insulation tube/plate production line
- Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun (extruder), PE PP welding rod
We have been working with more than 400 overseas customers and exporting our products to Kazakhstan, Uzbekistan, Iran, Turkey, Russia, Nigeria and other countries.
Thank you for your interest in Qingdao Huashida Machinery Co., Ltd. equipment.
For further details, please feel free to contact us at any time. Our team will respond promptly and provide a fully customized solution tailored to your specific requirements and project needs.
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