150°C UL VW-1 Low-Halogen XLPO Compound

LFR9502 is a developed for high-temperature wire insulation where a 150°C thermal class, VW-1 vertical-flame positioning and a low-halogen formulation are required together. Its combination of 28 g/10 min melt index and 480% post-irradiation elongation gives the grade a distinctive processing and mechanical profile for demanding wire constructions.

The strongest differentiation of this 150°C UL VW-1 Low-Halogen XLPO Compound is the combination of high-temperature service and high-flow processing. Typical tensile strength is 16.5 MPa and elongation at break is 480%; after 180°C × 168 h aging, typical values are 18.2 MPa and 395%. This makes LFR9502 the dedicated 150°C VW-1 low-halogen route within the cross-linked XLPO family.

• 150°C low-smoke, low-halogen XLPO insulation platform.
• VW-1-oriented vertical-flame positioning for finished-wire constructions.
• High melt flow: MI 28 g/10 min for extrusion-focused high-temperature projects.
• Very high post-irradiation elongation: 480%.
• Strong aged elongation retention: 395% after 180°C × 168 h.
• 16.5 MPa typical tensile strength after irradiation.
• Typical volume resistivity of 1.5 × 10¹³ Ω·m.

• 150°C + VW-1 + low halogen is the core application territory, separating LFR9502 from the 150°C zero-halogen FT-2 route.
• MI 28 high-flow behavior gives the grade a strong processing identity for fine-wall and compact wire insulation designs.
• 480% elongation provides substantial flexibility and mechanical margin after irradiation.
• 180°C × 168 h aging with 395% retained elongation supports demanding high-temperature wire qualification.

• 150°C electronic hook-up wire
• High-temperature appliance and equipment wiring
• Motor lead and equipment connection wire
• Industrial electrical and control wire
• Fine-wall or flexible 150°C low-halogen wire constructions targeting VW-1 performance

LFR9502 combines a 150°C material platform with a relatively high melt index of 28 g/10 min. This creates a different extrusion challenge from lower-flow high-temperature compounds: line speed, draw-down, conductor centering, wall-thickness stability and cooling must be balanced so that the insulation remains dimensionally consistent before irradiation. The goal is a repeatable process window that can then be validated through heat aging, hot-set and finished-wire VW-1 testing.

1. Confirm the 150°C temperature class, VW-1 target and acceptance of a low-halogen formulation.

2. Establish extrusion conditions around the MI 28 high-flow profile, with close control of wall thickness and centering.

3. Check insulation surface quality and dimensional stability before irradiation.

4. Apply electron-beam crosslinking; use 10-12 MRad as the recommended starting range.

5. Verify hot-set, tensile, elongation and 180°C × 168 h aging retention.

6. Complete VW-1 testing on the finished wire before finalizing production parameters.

For LFR9502 trials, please provide the target 150°C wire standard, conductor size, insulation thickness, VW-1 requirement, acceptable halogen level, extrusion-line information and irradiation conditions. Technical support can focus on high-flow extrusion stability, heat-aging retention, irradiation and finished-wire flame evaluation.