Dowsil TC-4525 Thermally Conductive Gap Filler 2.5W/m·K for Automotive
Dowsil TC-4525 is a two-part, room temperature cure silicone gap filler with thermal conductivity of 2.5 W/m*K, low compression stress, and controlled silicone volatility.
This material cures to a soft and compressible elastomer designed to dissipate heat from components on printed circuit boards to heat sinks, providing a reliable cooling solution.
Dowsil TC-4525 offers:
- Working time: 40 minutes
- Room temperature cure time: 120 minutes
- Shore 00 hardness: 40
- Volume resistivity: 2.6×10¹⁴ Ω*cm
- Dielectric strength: 12 kV/mm
| Property | Unit | Value |
|---|---|---|
| One or Two-part | - | Two |
| Mix Ratio | - | 1:1 |
| Color A/B | - | White/Blue |
| Viscosity, Mixed | Pa*s | 217 |
| Working Time at 25°C | minutes | 40 |
| Cure Time at 25°C | minutes | 120 |
| Thermal Conductivity | W/m*K | 2.5 |
| Hardness, Shore 00 | - | 40 |
| Hardness, Asker C | - | 32 |
| Volume Resistivity | Ω*cm | 2.6E14 |
| Dielectric Strength | kV/mm | 12 |
| Dielectric Constant at 1 MHz | - | 6.2 |
Dowsil TC-4525 is primarily used for thermal management in:
- Automotive engine control units
- Transmission control units
- Power electronics modules
Ensuring long-term stability in high-temperature environments.
We are a professional industrial adhesives and sealants supplier based in China since 2018, serving global markets:
- Mainland China (60%)
- Southeast Asia (20%)
- North America (10%)
- Europe (10%)
We supply high-performance adhesives and sealants from global leaders including:
- Cemedine
- Dow Corning
- Shin-Etsu
- Araldite
- Momentive
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