Advanced silicone materials designed to form ceramic protective barriers under extreme heat, providing thermal runaway protection, fire resistance, and high-temperature insulation for EV battery systems.
Our Ceramifiable Silicone Product Portfolio
Ceramifiable silicone materials combine the flexibility of silicone with ceramic-forming protection under high temperature conditions. They are designed for battery safety applications requiring thermal barriers, fire resistance, and structural protection.
Ceramifiable Silicone Solid Compound
High-performance solid silicone material designed for fire-resistant barriers and high-temperature protection applications.
Applications
- Battery pack fireproof seal
- Cell-to-cell thermal barrier
- Module side protection
- Busbar and cable insulation
- High-temperature sealing components
Key Features
- Forms ceramic protective layer under high heat
- Excellent flame resistance
- Maintains structural integrity after thermal exposure
- High temperature stability
- Electrical insulation performance
Ceramifiable Silicone Foam
Lightweight ceramic-forming foam material designed for thermal runaway protection and fire propagation prevention inside battery packs.
Applications
- Cell-to-cell thermal barrier
- Battery module fire isolation
- Thermal runaway protection pad
- Lightweight insulation layer
- Battery bottom protection
Key Features
- Lightweight structure
- Ceramic barrier formation under extreme heat
- Delays thermal propagation
- Flame-resistant performance
- Maintains separation during thermal events
Ceramifiable Silicone Applications in EV Battery Packs
Five key protection locations inside an EV battery structure.
From Silicone to Ceramic Protection Layer Under Extreme Heat
BeforeFlexible silicone material

High Temperature ExposureExtreme heat triggers ceramic transformation
AfterRigid ceramic protective structure
When exposed to extreme temperatures, ceramifiable silicone transforms into a stable ceramic barrier that provides thermal insulation, flame resistance, and structural protection.
Why Choose Ceramifiable Silicone
Advanced Silicone Solutions for EV Battery Safety
We provide customized ceramifiable silicone materials according to battery system requirements, including thermal protection, flame resistance, insulation, and structural safety.
Ceramifiable HTV Silicone Rubber for Extreme Temperature Protection
High-performance silicone rubber that transforms into a ceramic structure under extreme heat exposure.
Ceramic Structure Formation
Fireceramic residue + flame protection
Cablefire-resistant cable and seal applications
Advanced Ceramifiable Silicone Technology

Material Advantages
Fire and Heat Protection Applications
Battery Fire Protection
Battery pack fire cover and thermal protection layer.
Fire Resistant Cable
Fire-barrier material for cable protection systems.
High Temperature Seals
Fire-resistant seals, gaskets and closure components.
Industrial Heat Protection
Heat shields and industrial fire-protection barriers.
Processing Compatibility
Designed for HTV silicone rubber processing routes and application-specific part development.
Typical Technical Specification
Public benchmark values from Taiya / Guangmai CS-70 and CS-70-G ceramifiable silicone rubber TDS. Newsil final TDS values are subject to sample validation.
| Property | CS-70 Benchmark | CS-70-G Benchmark | Method / Note |
|---|---|---|---|
| Appearance | Solid silicone rubber sheet / roll | Glass-fiber composite silicone sheet | Visual |
| Hardness | Shore A 70±5 | >70 Shore A | GB/T 531.1 |
| Tensile Strength | ≥3.5 MPa | ≥25 MPa | GB/T 528 |
| Elongation | ≥70% | Composite structure | GB/T 528 |
| Compression Set | <12% | <12% | Public TDS |
| Ceramic Residue | Ceramic structure formation; 1200°C / 30 min no cracking | Ceramic structure formation; 1200°C / 30 min no cracking | Public TDS |
| Temperature Performance | -60–220°C recommended | -60–220°C recommended | Public TDS |
Benchmark references only. Newsil reserves final TDS issuance after compound formulation, processing and customer validation.
Customized Silicone Formulation
Newsil provides silicone formulation and application development for battery safety, cable fire protection and industrial heat-protection programs.
R&D positioning: silicone material development, not ordinary processing.
Newsil provides:
- Formula optimization
- Hardness adjustment
- Flame retardant modification
- Application development
Develop Your Ceramifiable HTV Silicone Material
Send your hardness, tensile, flame-test, ceramic-residue and processing requirements. Newsil will match the formulation and part-development route.