S4-HA 6:1 Enhanced Adhesive Rib Technology for Superior Sealing Underground Feeder Cable Splice Protection Tube
Unlike conventional adhesive-lined heat shrink tubing, S4-HA features an optional high-volume adhesive rib design, providing significantly more hot-melt adhesive inside the tubing.
The combination of a 6:1 shrink ratio and enhanced adhesive rib technology makes S4-HA particularly suitable for:
- Underground Feeder Splice Kits
- 600V UF Cable Protection
- Direct Burial Cable Repairs
- Mechanical Connector Insulation
- Irregular Cable Splices
- Utility and Power Distribution Networks
Where standard adhesive-lined tubing may struggle to completely seal large voids, S4-HA's high-volume adhesive system provides additional sealing material for improved long-term protection.
| Part No. S4-HA |
As supplied(mm) | After recovered(mm) | Standard length (m/pc) |
|||
| Inner diameter D(min.) |
Inner diameter d(max.) |
Wall thickness t(nom.) |
||||
| 19/3.2 | 19 | 3.2 | 3.3 | ≤1.22 | ||
| 33/5.5 | 33 | 5.5 | 3.8 | ≤1.22 | ||
| 45/7.5 | 45 | 7.5 | 4.2 | ≤1.22 | ||
| 55/9.2 | 55 | 9.2 | 4.7 | ≤1.22 | ||
| 66-11 | 66 | 11.0 | 5.0 | ≤1.22 | ||
| 76/12.7 | 76 | 12.7 | 5.0 | ≤1.22 | ||
| 87/14.5 | 87 | 14.5 | 5.2 | ≤1.22 | ||
| 115/19.2 | 115 | 19.2 | 5.4 | ≤1.22 | ||
| 160/26.6 | 160 | 26.6 | 5.8 | ≤1.22 | ||
| 178/29.6 | 178 | 29.6 | 6.0 | ≤1.22 | ||
| 235/40 | 235 | 40.0 | 6.5 | ≤1.22 | ||
Technical Data
| Property | Test Method | Requirement | ||||
| Tensile Strength | ASTM D2671 | ≥14MPa | ||||
| Ultimate Elongation | ASTM D2671 | ≥400% | ||||
| Heat Aging(136℃/168h) | ASTM D2671 | |||||
| Tensile Strength | ≥10 MPa | |||||
| Ultimate Elongation | ≥300% | |||||
| Water absorption (23°℃/24h) | ASTM D2671 | ≤0.3% | ||||
| Low-temperature flexibility(-55℃/4h) | ASTM D2671 | No cracking | ||||
| Heat shock(200℃/4h) | ASTM D2671 | No cracking,dripping or flowing | ||||
| Dielectric strength | ASTM D2671 | ≥15kV/mm | ||||
| Volume resistivity | ASTM D2671 | ≥1.0×10¹⁴ Ω ·cm | ||||

Applications
✔ Underground Feeder Splice Kits
✔ 600V UF Cable Protection
✔ Direct Burial Cable Repair
✔ Electrical Cable Splices
✔ Outdoor Power Distribution Systems
Keywords: High Adhesive Heat Shrink Tubing, Adhesive Rib Heat Shrink Tubing, 6:1 Heat Shrink Tubing, Underground Feeder Splice Kit, Waterproof Cable Seal, Direct Burial Cable Protection, Thick Wall Adhesive-Lined Heat Shrink Tubing.
Benefits of High Adhesive Volume Design
✔ Improved Waterproof Performance
✔ Better Gap Filling Capability
✔ Superior Protection for Irregular Shapes
✔ Enhanced Corrosion Resistance
✔ Increased Long-Term Reliability
✔ Ideal for Underground and Direct Burial Applications
When heated, the adhesive ribs melt and distribute evenly around the substrate, creating a robust environmental seal that helps prevent moisture ingress and contamination.
