3:1 Dual Wall Heat Shrink Tubing (Item ZH100, Adhesive Lined Tubing, Offer Yellow / Red / Green Color)
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3:1 Dual wall heat shrink tubing is made of soft and flame retardant polyolefin and hot-melt adhesive double layers without producing any harmful substances. The outer layer is polyolefin insulation flame retardant material which can resist ultraviolet and the inner one is hot-melt adhesive with excellent sealing property.
This product can avoid water, resist corrosion and prevent air leakage mainly applied to the binding and fixing of multiple strands of metal tubing.
Main features| The lowest temperature of beginning shrinking | 70℃ |
| The lowest temperature of ending shrinking | 125℃ |
| Operating temperature | -45℃~125℃ |
| Heat shrinking ratio | 3:1 |
| Environmental standard | RoHS |
| Major material | EVA |
| Standard color | black (other colors can be ordered) |
| Specification | Inner diameter before shrinking | Size after shrinking(mm) | Package standard | ||
| Inner diameter Minimum(mm) | Inner diameter maximum | Total wall thickness | Adhesive layer wall thickness | Meter/coil or piece | |
| Φ2.4 | 2.4 | 0.8 | 0.85±0.15 | 0.40±0.10 | 200 |
| Φ3.2 | 3.2 | 1.0 | 0.95±0.15 | 0.40±0.10 | 200 |
| Φ4.8 | 4.8 | 1.6 | 1.10±0.15 | 0.40±0.10 | 100 |
| Φ6.4 | 6.4 | 2.2 | 1.20±0.15 | 0.45±0.10 | 100 |
| Φ7.9 | 7.9 | 2.7 | 1.35±0.15 | 0.50±0.10 | 100 |
| Φ9.5 | 9.5 | 3.2 | 1.45±0.20 | 0.50±0.15 | 50 |
| Φ12.7 | 12.7 | 4.2 | 1.70±0.20 | 0.50±0.15 | 1.22 |
| Φ15.0 | 15.0 | 5.2 | 1.80±0.20 | 0.55±0.15 | 1.22 |
| Φ19.1 | 19.1 | 6.3 | 2.00±0.20 | 0.55±0.15 | 1.22 |
| Φ25.4 | 25.4 | 8.5 | 2.10±0.25 | 0.55±0.15 | 1.22 |
| Φ30.0 | 30.0 | 10.2 | 2.20±0.25 | 0.60±0.15 | 1.22 |
| Φ39.0 | 39.0 | 13.5 | 2.40±0.25 | 0.60±0.15 | 1.22 |
| Φ50.0 | 50.0 | 17.0 | 2.70±0.25 | 0.80±0.15 | 1.22 |
| Φ64.0 | 64.0 | 21.0 | 3.00±0.30 | 0.80±0.20 | 1.22 |
| Φ76.0 | 76.0 | 25.0 | 3.00±0.30 | 1.00±0.20 | 1.22 |
| Φ90.0 | 90.0 | 30.0 | 3.00±0.30 | 1.00±0.20 | 1.22 |
| Φ100 | 100 | 34 | 3.00±0.30 | 1.00±0.20 | 1.22 |
| Property | Index | Test method |
| Tensile strength | ≥10.4MPa | ASTM D 2671 |
| Breaking elongation | ≥300% | ASTM D 2671 |
| Tensile strength after heat aging | ≥7.3MPa | 158℃×168h |
| Breaking elongation after heat aging | ≥100% | 158℃×168h |
| The axial changing ratio | -8%～+8% | ASTM D2671 |
| Flame retardant property | Self-extinguish within 30s | SAE-AMS-DTL-23053/5 |
| Disruptive strength | ≥15 MV/m | IEC 243 |
| Volume resistivity | ≥1014Ω=cm | IEC 93 |
| Property | Test method | Index |
| Softening point | ASTM E 28 | 85±3℃ |
| Water absorption point | ASTM D 570 | ≤0.2% |
| The minimum peel strength of PE | ASTM D 1000 | ≥120N/25mm |
| The minimum peel strength of AL | ASTM D 1000 | ≥80N/25mm |
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