Adhesive-lined tubing for waterproof sealing. SRS-3X and SRS-4X in 3:1 and 4:1 ratios.
| Models | SRS-3X / SRS-4X |
|---|---|
| Shrink ratio | 3:1 / 4:1 |
| Standards | UL 224, RoHS, IATF 16949 |
SRS series dual wall tubing combines a radiation-crosslinked polyolefin outer layer with a hot-melt adhesive inner layer. During shrinking, the outer wall provides insulation while the adhesive melts and flows to create a waterproof seal.
| Property | Test Method | Requirement | Typical |
|---|---|---|---|
| Tensile strength | ASTM D638 | ≥10.4 MPa | 11 MPa |
| Elongation at break | ASTM D638 | ≥300% | 350% |
| Dielectric strength | IEC 243 | >20 kV/mm | 23 kV/mm |
| Water absorption | ISO 62 | <0.5% | 0.15% |
| Power frequency withstand | — | 2.5 kV, 60 s | Pass |
| Wall bias | UL 224 | ≤30% | 13% |
| Longitudinal change | UL 224 | ±5% | +3% |
Internal test data. Questions on parameters? Contact our engineers.
| Size | Expanded ID (mm) | Recovered ID max (mm) | Piece Length (m) |
|---|---|---|---|
| Φ3.2 | 3.5 ±0.3 | 1.0 | 1.22 |
| Φ4.8 | 5.2 ±0.3 | 1.6 | 1.22 |
| Φ6.4 | 6.8 ±0.4 | 2.2 | 1.22 |
| Φ9.5 | 9.9 ±0.4 | 3.2 | 1.22 |
| Φ12.7 | 13.2 ±0.5 | 4.2 | 1.22 |
| Φ19.1 | 19.6 ±0.5 | 6.3 | 1.22 |
| Φ25.4 | 25.4 ±0.8 | 8.5 | 1.22 |
| Φ50.0 | ≥50 | 17.0 | 1.22 |
Standard color: black. Custom colors available — contact our sales team.
Seal branch points and connector exits in automotive harnesses. The adhesive lining keeps water out of splices.
Moisture barrier for direct burial splices. The recovered wall plus adhesive seals the joint against soil water.
Seal coaxial and antenna connections in telecom installs. Also suits dock and navigation wiring outdoors.
Still deciding? Contact our engineers.
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