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HZD1611
HZD1611 is the RoHS-compliant 125°C irradiation cross-linked flame-retardant heat-shrink masterbatch — free of the six RoHS restricted substances, with mechanicals meeting UL 758 / UL 1581 for 125°C XLPE.
Material / equipment — RoHS-compliant irradiation cross-linked polyolefin heat-shrink masterbatch
Overview
HZD1611 is the environmentally-friendly member of the HZD16xx heat-shrink family, introduced to meet the EU RoHS directive: it contains none of the six restricted substances — lead, cadmium, mercury, hexavalent chromium, PBB or PBDE. Rated at 125°C, it is built on a polyolefin base with flame retardants, antioxidants and lubricants, melt-mixed and pelletized.
Tubing produced from HZD1611 meets UL 224 and serves cable connection, pipe connection, component insulation and multi-strand bundling. Its mechanical performance satisfies the UL 758 and UL 1581 requirements for 125°C XLPE, with good processability and cost-performance.
Packaging & Storage
Supplied in paper-plastic compound bags, 25 kg net per bag. Store in a dry, well-ventilated warehouse.
Technical data
Typical Properties
| Property | Unit | Requirement | Typical | Test Method |
|---|---|---|---|---|
| Density | g/cm³ | ≤ 1.40 | 1.33 | GB 1033 |
| Tensile strength | MPa | ≥ 13.8 | 15.7 | GB 1040 |
| Elongation at break | % | ≥ 300 | 421 | GB 1040 |
| Thermal aging | °C × h | 156 × 168 | 156 × 168 | GB 2951.7 |
| Tensile strength retention after aging | % | ≥ 70 | 105 | GB 2951.7 |
| Elongation retention after aging | % | ≥ 70 | 95 | GB 2951.7 |
| Volume resistivity (20°C) | Ω·m | ≥ 1×10¹² | 5.9×10¹² | GB 1410 |
| Dielectric strength | MV/m | ≥ 25 | 29 | GB 1408 |
| Oxygen index | % | ≥ 24 | 28 | GB 2406 |
| Smoke density (flaming) | — | ≤ 300 | 185 | GB 8323 |
| Smoke density (non-flaming) | — | ≤ 250 | 144 | GB 8323 |
| Halogen acid gas content | mg/g | ≤ 100 | 83 | IEC 60754-1 |
| Brittleness temperature | °C | < −25 | < −25 | GB 5470 |
| Shore hardness A (D) | — | — | 91 (48) | GB 2411 |
* Typical values are measured on production samples and provided for reference only — they are not a specification guarantee. Request the official TDS for binding limits.
Use cases
Applications
- —RoHS-compliant heat-shrink tubing for EU-bound electronics
- —Insulation sleeves for electronic and electrical components
- —Cable joint and pipe connection protection
- —Wire harness bundling
Process notes
Processing Recommendations
- —Recommended equipment: φ45–150 single-screw extruder, L/D ≥ 20, screen pack 20/80/20 mesh
- —Temperature profile: feed 120°C / transport 130°C / melting 140°C / die 140–150°C — trim die temperature to tube surface finish
- —Irradiation dose: 80–100 kGy (8–10 Mrad)
Where it's used
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Inquiry
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