FR6546

Low-Smoke Halogen-Free Flame Retardant Polyolefin Sheathing Compound

- Good processability, suitable for processing on general-purpose extruders.
- Excellent flame retardancy with an oxygen index ≥ 30%.
- Low smoke and low toxicity: smoke density ≤ 350 (without flame) / ≤ 100 (with flame), toxicity index ≤ 5.
- Halogen-free and environmentally friendly: halogen acid gas content ≤ 5 mg/g, combustion gas pH ≥ 4.3, conductivity ≤ 10 μs/mm.
- UV resistant.
Test itemsUnitTypical ValueTest StandardEquivalent Standard
Densityg/cm³1.47GB/T 1033.1ISO 1183-1
Tensile strengthMPa13.7GB/T 1040.3ISO 527-3
Elongation at break%196.7GB/T 1040.3ISO 527-3
Air oven thermal aging (100℃, 168h) — Tensile strength after agingMPa11.6GB/T 2951.12

GB/T 1040.3

IEC 60811-1-2

ISO 527-3

Air oven thermal aging (100℃, 168h) — Elongation at break after aging%163.3
Resistance to environmental stress crackingF₀/h≥96GB/T 2951.41IEC 60811-4-1
Low-temperature impact embrittlement (-25℃)—PassGB/T 5470ISO 974
Oxygen index%≥30GB/T 2406.2 ISO 4589-2
Halogen acid gas contentmg/g≤5GB/T 17650.1IEC 60754-1
Combustion gas pH value—5.3GB/T 17650.2IEC 60754-2
Combustion gas conductivityμs/mm1.0GB/T 17650.2IEC 60754-2
Shore hardness HA—91GB/T 2411ISO 868

This product is a low-smoke halogen-free flame-retardant polyolefin compound for optical fiber cables, recommended for optical cables with a diameter not exceeding 16 mm where low smoke density, halogen-free and flame-retardant performance is required.

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