Item Name: DOWSIL™ TC-6032 Thermally Conductive Encapsulant
Manufacturer: The Dow Chemical Company
Technologies: Two-part addition-cure silicone elastomer with thermally conductive fillers
Color: Part A – White, Part B – Blue, As Mixed – Contact to Techniq VN for details.
Cure Type: Heat cure
Package Size: 20 L pail
Shelf Life: Contact to Techniq VN for details
DOWSIL™ TC-6032 is a two-part (1:1), flowable, thermally conductive silicone elastomer designed for encapsulating sensitive electronic components. It offers heat dissipation, self-leveling flow, and versatility in heat curing. The material cures to form an elastic, thermally conductive rubber suitable for deep-section and confined cures, with no by-products from the curing process. It maintains performance over a wide temperature range and exhibits resistance to minimal solvent exposure.
On-board chargers
Inverters / converters
Transformers
Other electronic and electrical components requiring thermal management
Application Methods: Automated or manual mixing and dispensing.
| Property | Unit | Part A | Part B |
|---|---|---|---|
| Color | — | White | Blue |
| Viscosity | mPa·s | 8,000 | 4,000 |
| Specific Gravity at 25°C | — | 2.73 | 2.73 |
| Property | Unit | Result |
|---|---|---|
| Viscosity | mPa·s | 6,500 |
| Heat Cure Time | min | 80°C: 60; 100°C: 30; 120°C: 20 |
| Pot Life (Working Time) at 25°C | hour | 4 |
| Specific Gravity, Cured at 25°C | — | 2.75 |
| Hardness, Shore A | — | 34 |
| Adhesion Strength on Al | MPa | 80°C: 0.38; 100°C: 0.38; 120°C: 0.44 |
| Thermal Conductivity at 25°C | W/m·K | 3.2 |
| Tensile Strength | MPa | 0.5 |
| Elongation | % | 45 |
| Shear Modulus by DMA at 25°C | MPa | 1.55 |
| Dielectric Strength | kV/mm | 18 |
| Volume Resistivity | Ohm·cm | 1.3 × 10¹⁴ |
| Dielectric Constant | — | 100 Hz: 3.22; 100 kHz: 3.66 |
| Dissipation Factor | — | 100 Hz: 0.0029; 100 kHz: 0.0023 |
| Coefficient of Thermal Expansion (CTE) -40 to 150°C | ppm/K | 80 |
| Volatile Siloxane Contents (D4–D10) | ppm | <100 |
| UL 94 Flammability | — | V-0 |
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