Product Overview for silicone potting compound:
Key Features for silicone potting compound:
Efficient Thermal Conductivity (≥0.76 W/m·K) | High Insulation | Long-Term Thermal Stability | Low CTE | Non-Bleeding.
Technical Parameters:
| Thermal Conductivity | ≥0.76 W/m·K |
| Coefficient of Thermal Expansion (CTE) | 210 μm/(m·°C) |
| Volume Resistivity | 1.0×10¹⁶ Ω·cm |
| Operating Temperature Range | -50°C ~ +250°C |
| Hardness (Shore A) | 45±5 |
Product Applications for silicone potting compound:
1. Power Modules: Direct potting for IGBTs, MOSFETs, diodes, and other core power components to build an efficient heat dissipation barrier.
2. LED Drivers: Tailor-made for high-power outdoor LED driver power supplies, providing superior thermal management and weather protection.
3. New Energy: Widely used in photovoltaic (PV) inverter power sections and energy storage system (ESS) PCS units to ensure stable green energy conversion.
4. Industrial Drives: Ideal for power stages of variable frequency drives (VFDs) and servo drives, delivering integrated cooling and robust electrical insulation.
Method of Application
1. When used, mix A and B components evenly, and then weigh A and B components according to proportion. Mix thoroughly and evenly with a clean stirring device in a clean container, and then potting can be done. It can also be sealed under a vacuum after removing the bubbles.
2. The surface of the potting element needs to be cleaned. If the potting product is too large, it is recommended to potting in stages and then cure at room temperature (4-12hr) or by heating (80ºC-0.5hr).
3. For the automatic potting production line, in order to ensure accurate mixing ratio of A and B, Part A and Part B should be vacuumed respectively to remove the bubbles (the foaming time is 5-10 minutes), and then A and B should be pumped to the static mixer in proportion with a metering pump, and then potting can be done after mixing evenly.
Packaging & Storage for silicone potting compound:
10KG / Set (A, 5kg + B, 5kg) 20KG / Set (A, 10kg + B, 10kg) 50KG / Set (A, 25kg + B, 25kg)
Storage and transportation:This product is non-toxic non-dangerous goods, according to the general chemical handling, stored in a cool & dry place (room temperature).
FAQ for silicone potting compound:
Q: What level is 0.76 W/m·K?
A: It is a medium-high level for potting compounds, suitable for most power electronics, effectively reducing hot-spot temperatures.
Q: Are thermal conductivity and electrical insulation contradictory?
A: No, this product is designed for electronics, balancing both thermal and electrical performance.
Q: How to achieve the best cooling effect?
A: Ensure full contact between the compound, heat source, and housing, with no air bubbles.
Q: Does it bleed silicone oil?
A: No, it cures into a stable elastomer with no risk of silicone oil separation.
Q: Do you have higher conductivity grades?
A: Yes, for requirements >1.5 W/m·K, please contact us for advanced grades.
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