MK Series Thermal Barrier Material (GODZILLA™)
High-performance insulation material for next-generation EV battery packs.
Provides superior heat resistance, impact strength, and thermal runaway protection.
Innovative Multi-Layer Thermal Barrier for Electric Vehicle Battery Safety
The MK Series Thermal Barrier Material (GODZILLA™) is an advanced multi-layer insulation composite engineered to protect EV battery modules and packs against extreme heat, flame, and impact. Combining silicone rubber and glass fabric layers, it offers excellent ablative resistance, electrical insulation, and mechanical flexibility.
When exposed to temperatures up to 1500°C, the material maintains structural integrity with no burn-through, outperforming mica and ceramic fiber alternatives. Its low weight and ease of molding make it ideal for integration in complex battery system designs.
NAGASE supplies the GODZILLA™ MK Series globally for electric vehicle and energy storage applications, offering full technical support and reliable international logistics.
Applications
The GODZILLA™ MK Series is designed for comprehensive thermal and mechanical protection in EV battery systems.
- Above battery cover – Thermal insulation and impact-resistant eruption barrier
- Under battery cover – Ablative resistance and plasticity for heat and pressure control
- Cell-to-cell insulation – Prevents thermal propagation and spontaneous ignition
- Modules and packs – Ensures full-system thermal stability and structural protection
- Energy storage systems – Improves safety in high-density battery configurations
Features
The MK Series offers superior thermal, electrical, and mechanical performance under extreme conditions.
- High thermal resistance – Withstands 1500°C flame exposure with no burn-through
- Excellent electrical insulation – Low leakage current and high resistivity
- Outstanding ablative performance – Maintains structural stability under direct flame
- Lightweight and flexible – Easy to mold and integrate into battery pack designs
- Durable multilayer structure – Silicone rubber and glass fabric composite for long-term reliability
MK Series: Thermal Barrier Material
Features:
- Good electrical properties (leakage current, puncture strength, resistivity)
- Excellent ablative resistance
- Flexible and easy to molding
- Lightweight
Structure:

Application:


Godzilla MK Series Product Naming Rules
Material Code Identification Method
MK – A XY Z
A – Number of glass fibers
XY – Total thickness (including glass fiber)
Z – Special Model (Letter, spare)
Example: MK-310 represents Godzilla MK series materials, 3-layer glass fiber structure, total thickness 1,0 mm
Current Product Specifications Include:
MK-103 (1 layer of glass fiber, thickness 0,3 mm)
MK-105 (1 layer of glass fiber, thickness 0,5 mm)
MK-108 (1 layer of glass fiber, thickness 0,8 mm)
MK-110 (1 layer of glass fiber, thickness 1,0 mm)
MK-120 (1 layer of glass fiber, thickness 2,0 mm)
MK-150 (1 layer of glass fiber, thickness 1,5 mm)
MK-220 (2 layer of glass fiber, thickness 2,0 mm)
MK-310 (3 layer of glass fiber, thickness 1,0 mm)
MK-315 (3 layer of glass fiber, thickness 1,5 mm)
MK-320 (3 layer of glass fiber, thickness 2,0 mm)
MK-320 (3 layer of glass fiber, thickness 2,5 mm)
Frequently Asked Questions about MK Series Thermal Barrier Material
What is the GODZILLA™ MK Series Thermal Barrier Material used for?
It is primarily used for protecting electric vehicle (EV) battery packs and modules from heat, flame, and impact, ensuring safety and preventing thermal runaway.
How does the MK Series enhance battery safety?
The material acts as a thermal and eruption barrier, preventing flame propagation between cells and maintaining structure during high-temperature exposure.
What makes GODZILLA™ superior to mica or ceramic fiber materials?
Tests at 1500°C for 30 minutes show that GODZILLA™ maintains integrity with no burn-through, while mica and ceramic fiber layers fail under the same conditions.
Can the MK Series be customized for different battery designs?
Yes, its lightweight and flexible multilayer construction allows easy molding and adaptation to various EV battery pack geometries.
Who supplies the GODZILLA™ MK Series globally?
NAGASE provides global distribution, technical assistance, and logistics support for the MK Series Thermal Barrier Material in EV and energy storage applications.





