NexPoint Resins Achieve Top UL 2597 Tracking Rating at 900 V
LEXAN BPL1000 and CYCOLOY C2950 meet highest safety standards for high-voltage EV insulation.
NexPoint Materials announced that two of its engineering thermoplastic resins have achieved the highest rating in the UL 2597 Surface Tracking Test at 900 volts. The grades, LEXAN BPL1000 and CYCOLOY C2950, are positioned as solutions for electric vehicle insulation in high-voltage architectures.
What Happened
NexPoint, formerly part of SABIC’s Engineering Thermoplastics business, confirmed that LEXAN BPL1000 from its polycarbonate family and CYCOLOY C2950 from its PC/ABS line passed the top tier of the UL 2597 Surface Tracking Test. The test evaluates insulating materials for transportation applications within a voltage range of 600 V to 900 V, with 900 V representing the upper limit of the standard. Surface tracking occurs when electrical discharges create conductive paths on material surfaces, potentially compromising insulation integrity.
Why It Matters
As EV manufacturers move beyond standard 400-volt battery systems, the demand for reliable insulation at higher voltages increases. Dinesh Munjurulimana, Electrification Leader, Technology at NexPoint, stated that engineers require greater confidence in material performance under these more demanding conditions. The company also highlighted its VALOX polybutylene terephthalate resins, noting that high comparative tracking index materials can help reduce creepage distances while maintaining safety margins. These resins are recommended for high-voltage connectors, fast-charging systems, power distribution, and energy storage.
The Bottom Line
NexPoint’s achievement of the top UL 2597 rating at 900 V provides validated data for engineers selecting insulating materials for next-generation EV components and AI data center connectors.
