Interconnected challenges: safety, thermal control, and durability

As EV platforms evolve, the core engineering challenges are tightly linked:

• Thermal management: Batteries, power electronics, and charging components all generate heat. Effective thermal control is essential to protect performance, extend range, and maintain safety over the life of the vehicle.
• Fire protection and safety: Higher energy densities in battery packs increase the importance of flame retardancy, insulation, and materials that help delay or prevent thermal runaway.
• Long-term durability: EV components—from interior surfaces to under‑hood connectors and cable systems—must withstand temperature extremes, vibration, chemical exposure, and high electrical loads over many years.
• Scalability: OEMs and Tier suppliers are under pressure to ramp up production without compromising quality or compliance, requiring materials that process efficiently and reliably at scale.

These factors cannot be solved in isolation. A design choice that improves heat resistance, for example, may affect weight, flexibility, or regulatory compliance. This is why integrated material solutions are becoming central to EV innovation.

Westlake Global Compounds: enabling the EV transition

Westlake Global Compounds brings a broad portfolio of tailor‑made PVC and specialty compounds to the fast‑moving automotive market, where Westlake Global Compounds is a global manufacturer of slush‑mold compounds for automotive interiors. As electrification reshapes vehicle architecture, these capabilities extend naturally into EV‑specific applications.

Westlake also sees the push toward electrification as a strategic opportunity. Growing demand for EVs is expected to drive increased need for flexible wire and cable compounds, along with PVC compounds for a variety of electrical and infrastructure applications that support charging and grid expansion.

Interior solutions for the electric era

Electric vehicles are redefining what drivers expect inside the cabin—quiet, connected, and premium. Westlake Global Compounds supports these expectations with:

• Slush‑mold interior compounds for instrument panels, consoles, and door trims, offering soft touch, design freedom, and excellent grain definition, while meeting stringent OEM specifications.
• Materials engineered for low VOC and odor, supporting enhanced cabin air quality—a key differentiator in EVs, where quiet operation makes interior comfort even more noticeable.
• Durable, aesthetic surfaces that maintain appearance and integrity over long vehicle lifetimes, despite UV exposure and thermal cycling.

Wire, cable, and electrical components for EV architectures

As vehicles electrify, they effectively become high‑voltage, high‑data electrical systems on wheels. Westlake is well positioned to support this shift with:

• Flexible PVC compounds for wire and cable, designed for electrical applications and driven by increasing electrification demand. These compounds can be engineered for flame retardancy, flexibility, and resistance to oils and coolants, supporting both low‑ and high‑voltage cabling.
• Rigid PVC compounds for electrical components, including connectors, housings, and other injection‑molded parts that must withstand heat, mechanical stress, and demanding under‑hood conditions.

These solutions help OEMs and Tier suppliers address both safety and manufacturability as wiring harnesses and power distribution units become more complex in EV platforms.