SBRS-135G (3X)(4X), 135 Degree Temperature Heat Shrink Tube Dual Wall Adhesive Lined, is a cross-linked polyolefin tube that is extruded with an inner layer of adhesive. The inner layer of adhesive, with superior sealing capability, is also a buffer against mechanical strain. Dual wall heat shrink tubing is designed to provide superior sealing against water, corrosive gas and chemicals. Typical applications include environmental sealing of in-line splices, sealing and strain relief of connectors and terminals, abrasion protection and electrical insulation of automotive wiring harness splices and valuable components, fleet & marine sealing & protection and wire bundling etc.
Features
² Standard:AMS-DTL-23053/4,UL 224
² Shrink ratio:3:1,4:1
² Flame retardant outer layer,environment friendly,UV resistant
² Shrink temperature:70°C~125°C
² Continuous operating temperature:-45°C~135°C
² RoHS compliant
² Standard color: black, other colors are available on request
Technical Data
| Property | Typical data | Test method/condition |
| Tensile strength | ≥10.4MPa | ASTM D 2671 |
| Elongation at break | ≥300% | ASTM D 2671 |
| Tensile strength after heat aging | ≥8.4MPa | 175ºC×168h |
| Elongation after heat aging | ≥100% | 175ºC×168h |
| Longitudinal change | -8%~+8% | ASTM D 2671 |
| Flammability | Self extinguishing in 30 sec. | AMS-DTL-23053/5 |
| Voltage withstand(Rated voltage 600V) | 2500V,1min no breakdown | UL 224 |
| Heat shock | No cracks,no dripping | UL 224,250ºC×4h |
| Dielectric strength | ≥15kv/mm | IEC 60243 |
| Volume resistivity | ≥1014Ω.cm | IEC 60093 |
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Adhesive Technical Data
| Property | Typical data | Test method/condition |
| Softening point | 95±5ºC | ASTM E 28 |
| Water absorption | <0.5% | ASTM D 570 |
| Peel strength(PE) | ≥120N/25mm | ASTM D 1000 |
| Peel strength(AI) | ≥80N/25mm | ASTM D 1000 |
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Dimensions:
Adhesive heat shrink tubing ratio (3:1)
| Dimension | As supplied ID(mm) | After full recovery(mm) | Standard package | |||
| mm | inch | ID | Wall thickness | Thickness of adhesive  |
(m/spool,   m/pc) | |
| Φ3.2 | 1/8 | ≥3.2 | ≤1.00 | 0.90±0.15 | 0.35±0.10 | 200 |
| Φ4.8 | 3/16 | ≥4.8 | ≤1.60 | 1.00±0.15 | 0.40±0.10 | 100 |
| Φ6.4 | 1/4 | ≥6.4 | ≤2.20 | 1.25±0.15 | 0.45±0.12 | 100 |
| Φ7.9 | 5/16 | ≥7.9 | ≤2.70 | 1.30±0.15 | 0.50±0.12 | 100 |
| Φ9.5 | 3/8 | ≥9.5 | ≤3.20 | 1.40±0.15 | 0.50±0.12 | 50 |
| Φ12.7 | 1/2 | ≥12.7 | ≤4.20 | 1.70±0.15 | 0.50±0.12 | 25 |
| Φ15.0 | 5/8 | ≥15.0 | ≤5.20 | 1.80±0.15 | 0.55±0.15 | 25 |
| Φ19.1 | 3/4 | ≥19.1 | ≤6.30 | 1.95±0.15 | 0.55±0.15 | 25 |
| Φ25.4 | 1 | ≥25.4 | ≤8.50 | 2.05±0.20 | 0.55±0.15 | 25 |
| Φ30.0 | 1-1/4 | ≥30.0 | ≤10.20 | 2.20±0.20 | 0.60±0.15 | 1.22 |
| Φ39.0 | 1-1/2 | ≥39.0 | ≤13.50 | 2.50±0.20 | 0.60±0.15 | 1.22 |
| Φ50.0 | 2 | ≥50.0 | ≤17.00 | 2.80±0.25 | 0.70±0.15 | 1.22 |
Adhesive heat shrink tubing ratio (4:1)
| Dimension | As supplied ID(mm) | After full recovery(mm) | Standard package | |||
| mm | inch | ID | Wall thickness | Thickness of adhesive  |
 (m/spool,       m/pc) | |
| Φ4.0 | 2/13 | ≥4.0 | ≤1.0 | 1.05±0.30 | 0.50±0.20 | 200 |
| Φ6.0 | 1/4 | ≥6.0 | ≤1.5 | 1.15±0.30 | 0.50±0.20 | 100 |
| Φ8.0 | 5/16 | ≥8.0 | ≤2.0 | 1.55±0.30 | 0.60±0.25 | 100 |
| Φ12.0 | 1/2 | ≥12.0 | ≤3.0 | 1.75±0.30 | 0.60±0.25 | 25 |
| Φ16.0 | 5/8 | ≥16.0 | ≤4.0 | 2.00±0.35 | 0.70±0.30 | 25 |
| Φ20.0 | 4/5 | ≥20.0 | ≤5.0 | 2.30±0.40 | 0.70±0.30 | 25 |
| Φ24.0 | 1 | ≥24.0 | ≤6.0 | 2.60±0.40 | 0.75±0.30 | 25 |
| Φ32.0 | 1-1/4 | ≥32.0 | ≤8.0 | 3.00±0.50 | 0.90±0.30 | 1.22 |
| Φ52.0 | 2 | ≥52.0 | ≤13.0 | 3.35±0.50 | 0.95±0.30 | 1.22 |
Note:Non-standard dimensions and package are available on request
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