Product Overview
Procell EV Firewall Barrier Silicone Elastomer — Technical Overview & FAQs
Product Overview
Procell EV Firewall Barrier Silicone Elastomer is a high-performance, flame-resistant silicone material engineered for thermal shielding, fire containment, and electrical insulation in electric vehicle (EV) battery systems and high-energy power modules.
This advanced elastomer is designed to function as a firewall barrier, helping slow flame propagation, resist high heat exposure, and provide a physical buffer between battery cells, modules, and vehicle cabin structures.
With exceptional resistance to thermal runaway events, arc flash, and direct flame, Procell EV Firewall Barrier Silicone Elastomer supports safer EV battery pack design, improved crash survivability, and compliance with UL 94 V-0, FMVSS, and EV battery safety standards.
Applications
EV battery module and pack fire barrier
Cell-to-cell and module-to-module thermal partitioning
Flame shields for hybrid and electric vehicle systems
Electrical insulation pads and barrier layers
Thermal runaway containment and flame damping layers
High-temperature gasketing and enclosure protection
Key Properties
Material Type: High-consistency silicone firewall elastomer
Flame Resistance: UL 94 V-0 / self-extinguishing
Thermal Runaway Resistance: Excellent high-heat and flame-event tolerance
Temperature Range: –67 °F to +500 °F (–55 °C to +260 °C) continuous
Dielectric Strength: High dielectric insulation for EV power systems
Compression Set: Low compression set for long-term sealing reliability
Tensile Strength: High mechanical integrity under thermal cycling
Chemical Resistance: Resistant to oils, electrolytes, ozone, and UV
Smoke & Toxicity: Low-smoke, low-toxicity formulation suitable for EV interiors
Fabrication Options: Sheets, rolls, molded parts, die-cut gaskets, laminated assemblies
Compliance: UL 94 V-0 | FMVSS | RoHS | REACH | EV battery safety benchmarks
FAQs
What is Procell EV Firewall Barrier Silicone Elastomer used for?
It is used as a fireproof and heat-resistant barrier inside EV battery packs to slow flame spread, improve passenger safety, and protect surrounding components in the event of a thermal runaway.
What makes this material ideal for EV battery protection?
It combines flame resistance, high dielectric strength, thermal insulation, and mechanical durability — all critical for modern lithium-ion battery pack design.
Does this silicone meet UL 94 V-0?
Yes — the elastomer is UL 94 V-0 rated, meaning it self-extinguishes quickly and minimizes flame propagation.
Can this be die-cut or fabricated?
Yes — H-O Products provides custom-cut parts, precision die-cut gaskets, molded components, sheets, and laminated barrier constructions for EV designs.
Is this material compatible with EV battery chemistries and electrolytes?
Yes — it has excellent chemical resistance to electrolytes, oils, coolants, and environmental exposure, ensuring long-term stability inside battery enclosures.
Contact H-O Products to request Procell EV Firewall Barrier Silicone Elastomer samples, technical data, or custom-cut components engineered for EV battery safety and thermal protection - contact us.
