The Qingdao Huashida Radiation Cross-linked Polyethylene (PE) Heat Shrink Sleeve is an advanced anti-corrosion solution designed for the field application of 3-layer polyethylene (3LPE) coating systems. It is ideal for the protection and repair of welded joints in steel pipelines used in oil, gas, and water supply systems.
This product replicates the factory-applied 3LPE structure and performance in field conditions, ensuring durable and reliable protection for pipeline joints.
The heat shrink sleeve is composed of two primary layers:
This system is applied in conjunction with a solvent-free two-component epoxy primer, forming a true 3-layer field-applied coating system.
Test Item | Unit | Requirement | Result | Test Method |
---|---|---|---|---|
Tensile Strength | MPa | ≥17 | 19.47 | ASTM D638 |
Elongation | % | ≥400 | 626 | ASTM D638 |
Vicat Softening Point | ºC | ≥90 | 92 | ASTM D1525 |
Brittleness Temperature | ºC | < -65 | < -65 | ASTM D2671C |
Dielectric Strength | MV/m | ≥25 | 33.13 | ASTM D149 |
Volume Resistivity | Ω*m | ≥1×10¹³ | 1.1×10¹³ | ASTM D257 |
Environmental Stress Crack Resistance | h | ≥1000 | >1000 | GB/T 1842 |
Chemical | Test Item | Requirement | Result |
---|---|---|---|
10% HCl | Tensile Strength | ≥85% | 104.9 MPa |
Elongation | ≥85% | 96.3% | |
10% NaOH | Tensile Strength | ≥85% | 102.1 MPa |
Elongation | ≥85% | 95.6% | |
10% NaCl | Tensile Strength | ≥85% | 108.3 MPa |
Elongation | ≥85% | 94.1% |
Test Item | Requirement | Result |
---|---|---|
Tensile Strength | ≥14 MPa | 20.7 MPa |
Elongation | ≥300% | 630% |
Test Item | Unit | Requirement | Result | Test Method |
---|---|---|---|---|
Softening Point | ºC | ≥90 | 90.1 | ASTM E28 |
Brittleness Temperature | ºC | < -15 | < -15 | ASTM D2671C |
Lap Shear Strength | MPa | ≥1.0 | 1.5 | ASTM D1002 |
Peel Strength (23±2ºC) | N/cm | ≥70 | Steel: 145.6 Primer: 205.9 PE Layer: 190.0 |
ASTM D1000 |
Test Item | Requirement | Result | Method |
---|---|---|---|
Shear Strength of Cured Primer | ≥5.0 MPa | 12 MPa | SY/T0041 |
This product complies with major national and international standards, including:
A complete product set includes:
Maximum Operating Temperature: 60 ºC
Available formats:
Pipe Size (mm) | Sleeve Length (mm) | Patch Length (mm) | Patch Width (mm) |
---|---|---|---|
Φ159 × 500 | 670 | 500 | 80 |
Φ219 × 500 | 860 | 500 | 100 |
Φ273 × 500 | 1000 | 500 | 100 |
Φ325 × 500 | 1200 | 500 | 100 |
Φ355 × 500 | 1300 | 500 | 100 |
Φ406 × 500 | 1460 | 500 | 120 |
Φ508 × 500 | 1800 | 500 | 120 |
Φ610 × 500 | 2170 | 500 | 120 |
Φ711 × 500 | 2500 | 500 | 150 |
Φ813 × 500 | 2880 | 500 | 150 |
Φ1016 × 500 | 3480 | 500 | 150 |
Φ1219 × 500 | 4120 | 500 | 200 |
Φ1420 × 500 | 4780 | 500 | 200 |
Width (mm) | Standard Length | Thickness |
---|---|---|
100-600 | 5m, 10m, 15m, 20m, 30m per roll | PE Layer: 1.2 mm Adhesive Layer: 0.8 mm |