Brand: DOWSIL™ 340 Heat Sink Compound. It is produced by Dow, formerly known as Dow Corning.
Available Sizes:
Shelf Life: The compound has a shelf life of 60 months (5 years) from the date of manufacture.
DOWSIL™ 340 Heat Sink Compound:
DOWSIL™ 340 Heat Sink Compound is a white, non-curing, non-flowing silicone-based thermal interface material. It is heavily filled with heat-conductive metal oxides, providing moderate thermal conductivity and high-temperature stability. This compound is designed to maintain a positive heat sink seal, enhancing heat transfer from electronic devices to heat sinks, thereby improving overall device efficiency.
| Property | Unit | Value |
|---|---|---|
| Color | – | White |
| Viscosity | cP (Pa·s) | 542,000 (542) |
| Specific Gravity (Uncured) | – | 2.1 |
| Bleed | % | 0.23 |
| Thermal Conductivity | W/m·K | 0.67 |
| Thermal Resistance at 40 psi | °C·cm²/W | 0.16 |
| Penetration (Worked) | 1/10 mm | 290 |
| Evaporation | % | 0.38 |
| Shelf Life at 38°C | months | 60 |
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