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Thermal-conductive greases CGW® series
- mobility
- electronics
- Battery performance degradation due to high temperatures
- Heat dissipation grease of low siloxane curing in room temperature
- Technical information
- Document download
Battery performance degradation due to high temperatures
It is said that temperature control of the battery is crucial to maintain battery life span, safety, and performance stability in electric vehicles (EVs).
Repeated cycles of charging and discharging generate heat inside the cell and in the connected system, which can cause degradation and fire. Furthermore, trapped heat inside the battery pack or the imbalance in the electricity due to temperature changes from module to module can affect battery performance, therefore, it is necessary to release the heat inside the battery and maintain a suitable temperature.
Heat dissipation grease of low siloxane curing in room temperature
The CGW® series of thermal conductive greases is a two-component silicone-based thermal conductive grease. They contain very little low-molecular-weight siloxane and are low-volatile materials.
They are low-specific-gravity materials, contributing to the weight reduction of automobiles.
They have been used in EV batteries in Europe, and are recognized for their high reliability.
Technical information
Technical overview
Wide range of product line
2W/mk–6W/mk 
Lightweight
All products exhibit low specific gravity
Contributes to the automotive weight reduction initiative.
Low volatility
Less than 70ppm
Remarkably low concentration of molecular siloxane content.
High reliability
Over 10 years of mass production
Achievements garnered from the European automotive market.
Technical details
Wide range of product line
| GAP FILLER CGW Series |
CGW-2 2.0W/mk |
|---|---|
| CGW-3 3.0W/mK | |
| CGW-3.6 3.6W/mk | |
| CGW-4.5 4.5W/mk | |
| CGW-6 6.0W/mk |
Low specific gravity
| Specification | Unit | CGW-2 | CGW-3LW | CGW-3.6 | CGW-4.5 |
|---|---|---|---|---|---|
| Thermal conductivity | ASTM D 5470 | 2.0 W/mk | 3.0 W/mk | 3.6 W/mk | 4.5 W/mk |
| Hardness | Shore 00 | 50 | 55 | 40 | 55 |
| Electrically insulating | >10kV/mm | >10kV/mm | >10kV/mm | >10kV/mm | |
| Specific gravity | g/cc | 1,95 | 2,2 | 2,85 | 3,15 |
| Flammability | UL94 | V0 | V0 | V0 | V0 |
| Siloxane out-gas | D4-D10 | <70ppm | <70ppm | <70ppm | <70ppm |
Low volatility
Fig. PWIS test condition
The sample got warmed by oil bath for 72h and 100℃ and inside of cooling condenser keep having 25℃ water.| CGW-2 | CGW-3 | XGW-3.6 | |
|---|---|---|---|
| Before(g) | 8.5053 | 17.9632 | 13.7606 |
| After(g) | 8.5032 | 17.9594 | 13.7574 |
| Change(g) | -0.0021 | -0.0038 | -0.0032 |
| Change(%) | -0.025 | -0.021 | -0.023 |
High reliability
Document download
- All
- Catalog
| Name | Type | File | Update | File |
|---|---|---|---|---|
| Catalog:Thermal-conductive greases CGW® series_SekisuiMobilitySolution | Catalog | 2023-09-11 | Download1.87 MB |