HZD1610
125 °C irradiation cross-linked flame-retardant heat shrink tube compound
Overview
HZD1610 is a polyolefin-based, irradiation cross-linked flame-retardant master compound rated 125 °C for heat shrink tubing. Built on a polyolefin base with flame retardants, anti-ageing and lubricating additives, it produces UL / CSA and UL224 heat shrink tube used for cable joints, terminations, component insulation and conductor bundling, with a strong balance of mechanical performance and cost.
Key features
- Irradiation cross-linked, 125 °C continuous rating
- Flame-retardant with low halogen acid gas emission
- Good mechanical and extrusion processing performance
- Suitable for UL / CSA and UL224 heat shrink tubing
- Excellent cost-to-performance ratio, colourable
Typical applications
Specifications
Typical values from LSZH sample testing.
| Property | Typical value | Unit | Test method |
|---|---|---|---|
| Density | 1.31 | g/cm³ | GB 1033 |
| Tensile strength | 15.6 | MPa | GB 1040 |
| Elongation at break | 402 | % | GB 1040 |
| Tensile retention after ageing (156 °C × 168 h) | 103 | % | GB 2951.7 |
| Elongation retention after ageing | 94 | % | GB 2951.7 |
| Volume resistivity (20 °C) | 6.5 × 10¹² | Ω·m | GB 1410 |
| Dielectric strength | 29 | MV/m | GB 1408 |
| Oxygen index | 27 | % | GB 2406 |
| Smoke density (flaming / non-flaming) | 181 / 154 | GB 8323 | |
| Halogen acid gas content | 89 | mg/g | IEC 60754-1 |
| Brittleness temperature | < -25 | °C | GB 5470 |
| Shore hardness A (D) | 91 (48) | GB 2411 |
Typical values from LSZH sample testing; reference only, not guaranteed minimum/maximum.
Processing guidance
- Recommended equipment
- φ45–150 single-screw extruder
- Length-to-diameter ratio (L/D)
- ≥ 20
- Filter screen (mesh)
- 20 / 80 / 20
- Temperature profile (feed / transport / melt / die)
- 120 / 130 / 140 / 140–150 °C
- Irradiation dose
- 100–130 kGy (10–13 Mrad)
Recommended machinery
Single-screw extrusion line (φ45–150)
L/D ≥ 20
Heat shrink tube expansion line
Interested in HZD1610?
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