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3:1Dual Wall Adhesive Lined Heat Shrink Tubing
E-FLEX®Adhesive lined heat shrink tubing is a high-performance, dual-wall heat shrinkable tubing engineered through the advanced co-extrusion of irradiated cross-linked polyolefin and a specialized hot-melt adhesive.
With a versatile 3:1 shrink ratio, it allows a single size to cover a wide range of irregular diameters and components. Upon heating, the inner adhesive liner flows to fill voids, creating a permanent, rugged, and moisture-proof seal that provides critical mechanical and environmental protection for sensitive electronics and cable transitions.
What's special about adhesive heat shrink tubing?
1.Superior Environmental Sealing: The co-extruded adhesive liner melts and flows to encapsulate complex connectors, ensuring a reliable, watertight seal against moisture and corrosion.
2.Versatile 3:1 Shrink Ratio: Easily adapts to transitions between large connectors and small cables, reducing the need for multiple inventory sizes and enhancing installation flexibility.
3.Rugged Durability: Designed for extreme environments with an operating temperature range of -45℃ to 125℃,offering excellent UV, chemical, and abrasion resistance.
4.Efficient Installation: Shrinkage begins at 70℃ and reaches full recovery at 125℃, compatible with standard heat guns or industrial tunnel furnaces.
Physical Properties
| Materia | Polyolefin+Hot Melt Adhesive |
|
Style |
Adhesive Line Dual Wall |
| Shrink Ratio | 3:1 |
| Working Temperature |
-45℃ to 125℃ |
|
Start Shrink Temperature |
70℃ |
|
Minimum Complete Shrink Temperature |
125℃ |
|
Longitudinal Shrinkage |
±10% |
|
Breakdown Strength |
≥15KV/mm refers to IEC 60243 |
| Standard Color | Black |
| Serviceable Tool | Heat Gun/Tunnel Furnace |
| Cutting Tool | Scissor |
Specification
Part No
Size
Unshrink ID D(mm)
After Shrunk Size(mm)
Packing Length (m/spool)
d
w.t
HST-DW3-AD-3.2-BK
Φ3.2
≥3.20
≤1.00
0.90±0.30
200
HST-DW3-AD-4.8-BK
Φ4.8
≥4.80
≤1.60
1.05±0.30
100
HST-DW3-AD-6.4-BK
Φ6.4
≥6.40
≤2.20
1.25±0.30
100
HST-DW3-AD-7.9-BK
Φ7.9
≥7.90
≤2.70
1.35±0.30
100
HST-DW3-AD-9.5-BK
Φ9.5
≥9.50
≤3.20
1.45±0.30
50
HST-DW3-AD-12.7-BK
Φ12.7
≥12.70
≤4.20
1.65±0.30
25
HST-DW3-AD-15.0-BK
Φ15.0
≥15.00
≤5.20
1.80±0.30
25
HST-DW3-AD-19.1-BK
Φ19.1
≥19.10
≤6.30
1.95±0.30
25
HST-DW3-AD-25.4-BK
Φ25.4
≥25.40
≤8.50
2.00±0.40
25
HST-DW3-AD-30.0-BK
Φ30.0
≥30.00
≤10.20
2.15±0.40
25
HST-DW3-AD-40.0-BK
Φ40.0
≥40.00
≤13.50
2.45±0.40
25
HST-DW3-AD-50.0-BK
Φ50.0
≥50.00
≤17.00
2.75±0.40
25
HST-DW3-AD-64.0-BK
Φ64.0
≥64.00
≤21.00
3.05±0.40
25
HST-DW3-AD-75.0-BK
Φ75.0
≥75.00
≤25.00
3.05±0.50
25
HST-DW3-AD-90.0-BK
Φ90.0
≥90.00
≤30.00
3.10±0.50
25
HST-DW3-AD-100.0-BK
Φ100.0
≥100.00
≤34.00
3.1±0.50
25
Application
Due to its balance of mechanical toughness and environmental encapsulation, E-FLEX® 3:1 is widely used in critical sectors:
- Connector Back-end Sealing: Provides rugged strain relief and moisture protection at the transition between connectors and cables.
- Wire Harness Breakouts: Secures and seals multi-core cable forks against environmental ingress.
- Industrial Automation: Protects sensor leads and precision electronic components from cutting fluids, oils, and humidity.
- Transportation (Railway & Automotive): Meets the rigorous demands for vibration resistance and thermal stability in rolling stock and engine compartments.
- Outdoor Telecommunications: Long-term encapsulation for RF connectors and base station wiring exposed to harsh weather.
