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HZD1610
HZD1610 is a 125°C irradiation cross-linked, flame-retardant heat-shrink tubing masterbatch. Tubing produced from it meets UL 224, with reliable mechanicals and an excellent cost-performance ratio.
Material / equipment — Irradiation cross-linked polyolefin heat-shrink masterbatch
Overview
HZD1610 is an irradiation cross-linked, flame-retardant heat-shrink tubing masterbatch rated at 125°C. It is compounded from a polyolefin base resin with flame retardants, antioxidants and lubricants, then melt-mixed, plasticized and pelletized. The grade is designed for UL and CSA style heat-shrink tubing: finished tubes meet UL 224 and are used for cable joints, pipe connections, insulation of electronic components and bundling of stranded wires.
HZD1610 combines good mechanical performance with easy processing on standard tube extrusion equipment, at a highly competitive cost-performance ratio.
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 | 1.31 | GB 1033 |
| Tensile strength | MPa | ≥ 13.8 | 15.6 | GB 1040 |
| Elongation at break | % | ≥ 300 | 402 | GB 1040 |
| Thermal aging | °C × h | 156 × 168 | 156 × 168 | GB 2951.7 |
| Tensile strength retention after aging | % | ≥ 70 | 103 | GB 2951.7 |
| Elongation retention after aging | % | ≥ 70 | 94 | GB 2951.7 |
| Volume resistivity (20°C) | Ω·m | ≥ 1×10¹² | 6.5×10¹² | GB 1410 |
| Dielectric strength | MV/m | ≥ 25 | 29 | GB 1408 |
| Oxygen index | % | ≥ 24 | 27 | GB 2406 |
| Smoke density (flaming) | — | ≤ 300 | 181 | GB 8323 |
| Smoke density (non-flaming) | — | ≤ 250 | 154 | GB 8323 |
| Halogen acid gas content | mg/g | ≤ 100 | 89 | 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
- —Heat-shrink tubing to UL and CSA standards (finished tube meets UL 224)
- —Cable joint and pipe connection protection
- —Insulation sleeves for electronic components
- —Bundling and marking of stranded wires
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: 100–130 kGy (10–13 Mrad)
Where it's used
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Inquiry
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