Flame Retardant Dual Wall Heat Shrink Tubing (Item AFR140, Adhesive Lined Tubing, Black, 3:1 Shrink Ratio)
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The flame retardant dual wall heat shrink tubing is made of polyolefin material and hot-melt adhesive. The outer layer is cross-linking polyolefin and the inner one hot-melt adhesive, both of which have excellent flame retardant properties.
At the same time, the product can provide insulation, waterproof, mechanical protection and impact resistance, so it is mainly used for the sealing and insulation protection of medium and low voltage cable termination or the joints in-between, insulation for all kinds of bus lines and other working environment requiring anti-corrosion, moisture prevention and mechanical sealing.
Product 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 |
| Flame retardant type | YES |
| Major material | EVA |
| Standard color | black (other colors can be ordered) |
| Specification | Inner diameter before shrinking | Size after shrinking (mm) | Package standard (Meter/piece) | |||
| Inner diameter Minimum (mm) | Inner diameter maximum | The outer layer wall thickness | Adhesive layer thickness | Average total wall thickness | ||
| 10.2/3.0 | 10.2 | 3 | 1.40±0.20 | 0.35±0.10 | 1.75±0.25 | 1.22 |
| 19.1/5.6 | 19.1 | 5.6 | 2.00±0.20 | 0.45±0.10 | 2.45±0.25 | 1.22 |
| 28/9 | 28 | 9 | 2.00±0.20 | 0.50±0.10 | 2.60±0.25 | 1.22 |
| 38.1/12 | 38.1 | 12 | 2.20±0.20 | 0.50±0.10 | 2.70±0.25 | 1.22 |
| 55/16 | 55 | 16 | 2.30±0.25 | 0.50±0.10 | 2.80±0.30 | 1.22 |
| 75/22 | 75 | 22 | 2.60±0.25 | 0.50±0.10 | 3.00±0.30 | 1.22 |
| 95/29 | 95 | 29 | 3.10±0.30 | 0.60±0.20 | 3.70±0.35 | 1.22 |
| 140/42 | 140 | 42 | 3.10±0.30 | 0.60±0.20 | 3.70±0.35 | 1.22 |
| 180/58 | 180 | 58 | 3.10±0.30 | 0.60±0.20 | 3.70±0.35 | 1.22 |
| 230/69 | 230 | 69 | 3.10±0.30 | 0.60±0.20 | 3.70±0.35 | 1.22 |
| Property | Index | Test method |
| Tensile strength | ≥12 MPa | ASTM D 2671 |
| Breaking elongation | ≥300% | ASTM D 2671 |
| Tensile strength after heat aging | ≥8.4MPa | 158℃×168h |
| Breaking elongation after heat aging | ≥100% | 158℃×168h |
| The axial changing ratio | -8%～+8% | ASTM D 2671 |
| Flame retardant property | Outer layer self-extinguish within 30s | SAE-AMS-DTL-23053/5 |
| Disruptive strength | ≥15kV/mm | IEC 60243 |
| Volume resistivity | ≥1014Ω=cm | IEC 60093 |
| Property | Index | Test method |
| Softening point | 95±5℃ | ASTM E 28 |
| Water absorption point | 0.5% | ASTM D 570 |
| The minimum peel strength of PE | ≥120N/25mm | ASTM D 1000 |
| The minimum peel strength of AL | ≥80N/25mm | ASTM D 1000 |
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