Flame Retardant | Thermal Insulation | Electrical Insulation | Sealing & Cushioning
Ceramicized Silicone Foam is a flexible closed-cell silicone foam designed for EV battery thermal protection, energy storage systems, electrical insulation and high-temperature sealing.
When exposed to extreme heat or direct flame, the material forms a rigid ceramic-like protective layer that helps resist flame penetration and slow heat transfer. Before ceramicization, the silicone foam remains flexible and compressible, providing additional sealing, cushioning and insulation for battery and industrial components.
Ceramicized silicone foam is an advanced thermal protection material specifically developed for electric vehicle (EV) batteries and energy storage systems. Under normal operating conditions, it functions as a flexible, closed-cell silicone foam providing compression, sealing, gap-filling, and electrical insulation.
When exposed to extreme heat or direct flame, the material transforms into a rigid, ceramic-like protective layer. This unique transformation creates a highly effective thermal barrier designed to help protect adjacent sensitive components and prevent thermal propagation during critical fire events.

| Property | Typical Value |
|---|---|
| Material | Ceramicized Silicone Foam |
| Structure | Closed Cell |
| Standard Density | 1.3 to 1.8 g/cm³ |
| Lightweight Density Option | 0.24 to 0.50 g/cm³ |
| Thickness Range | 0.2 to 3.0 mm (Custom up to 30 mm) |
| Operating Temperature | -60°C to +200°C |
| Thermal Conductivity | ≤0.4 W/m·K |
| Hardness (Shore A) | 60 ± 10 |
| Volume Resistivity | ≥1.0 × 10¹⁴ Ω·cm |
| Tear Strength | ≥10 KN/m |
| Water Absorption | ≤3% |
| Flame Retardancy | UL94 V-0 |
| Color | Black, Gray, Red |
| Available Form | Sheet, Roll, Custom Die-Cut Parts |
*Technical values may vary according to formulation, density, and thickness. Please request a Technical Data Sheet (TDS) for specific grades.

Different mechanical designs require specific thicknesses, densities, and part geometries. We supply customized ceramicized silicone foam components tailored to your hardware requirements:

We support commercial and industrial clients from early-stage material selection through to high-volume production. By providing exact operating temperatures, installation space constraints, and required fire-protection levels, our engineering team can recommend the ideal material grade.
Q: What exactly is ceramicized silicone foam?
A: It is a silicone-based foam compounded with ceramic-forming agents. During normal conditions, it acts as a flexible seal and insulator. When exposed to extreme flame, it transforms into a rigid ceramic layer, providing an active fire barrier.
Q: Is this material safe to use directly inside EV battery modules?
A: Yes. It is specifically formulated for EV battery thermal barriers, cell-to-cell insulation, and high-voltage electrical protection.
Q: How do I select the proper density for my application?
A: Choose lower densities (e.g., 0.24 to 0.50 g/cm³) when prioritizing lightweight cushioning and higher flexibility. Select higher densities (e.g., 1.3 to 1.8 g/cm³) when the design requires strong mechanical support and high compression resistance.
Q: Can the foam be manufactured into custom shapes?
A: Yes. The material can be processed into custom die-cut gaskets, insulation pads, and specific complex geometries matched to your CAD files.
Q: How can I request samples or technical documentation?
A: Contact our technical team with your application requirements (thickness, density, and operating conditions). We will supply the corresponding TDS, test reports, and physical samples for your evaluation.