Thermal Grease (Silicone Thermal Paste)
Fangying’s thermal grease series is a highly thermally conductive, electrically insulating silicone material. It combines excellent electrical insulation with outstanding heat transfer, near-zero oil bleed, and strong resistance to high and low temperatures, moisture, ozone and aging. Applied between heat-generating components and heat-dissipation structures — heat sinks, cooling bars and enclosures — it acts as a heat-transfer medium while providing moisture, dust, corrosion and vibration protection.
Its excellent surface wetting fills micro-irregularities on the contact interface, effectively reducing interfacial thermal resistance and ensuring reliable, long-term thermal performance across a wide range of electronics and electrical equipment.
Key performance features
- Efficient heat transfer — low thermal resistance with 1–7 W/m·K thermal conductivity.
- High electrical insulation — safe for direct contact with electronic components and circuits.
- Near-zero oil bleed — long-term stability and reliability in continuous operation.
- Strong weathering resistance — withstands high and low temperatures, moisture, ozone and aging.
- Excellent surface wetting — fills micro-gaps and reduces interfacial thermal resistance.
- Easy application — manual smearing, screen printing or automated dispensing for high-volume assembly.
- Multi-function protection — moisture, dust, corrosion and vibration protection at the interface.
Typical specifications
| Thermal conductivity | 1 – 7 W/m·K |
| Base material | Silicone-based thermal grease |
| Electrical insulation | High electrical insulation |
| Oil bleed | Near zero (tends to zero) |
| Weathering resistance | High/low temperature, moisture, ozone and aging resistant |
| Compliance | RoHS, halogen-free, HF-controlled |
| Application method | Manual smearing / screen printing / automated dispensing |
| Packaging | Syringe / cartridge / jar, per your volume |
| Volume | From prototype samples to high-volume production |
Typical applications
- Desktop computer CPUs — heat transfer between processor and heat sink.
- TV sets — thermal management in display and power sections.
- LED lighting fixtures — reliable heat path for high-brightness LEDs.
- Heat sinks and cooling modules — improved contact between heat source and fin stack.
- Power transistors — junction-to-heat-sink heat transfer in power electronics.
- Electric heating stacks — stable thermal coupling in heating equipment.
- Inverters / frequency converters — thermal management in variable-frequency drives.
- Wire and cable equipment — heat dissipation in electrical machinery.
Frequently asked questions
What is the thermal conductivity of this thermal grease?
1 – 7 W/m·K across the series, confirmed on the material datasheet for each grade.
Is thermal grease electrically insulating?
Yes. It is a thermally conductive silicone material with excellent electrical insulation, safe for direct contact between heat-generating components and heat sinks.
Does the grease bleed or dry out over time?
No. The series features near-zero oil bleed for long-term stability and reliability in continuous operation.
Can it withstand harsh environments?
Yes. It resists high and low temperatures, moisture, ozone and aging, making it suitable for a wide range of operating environments.
Are the materials compliant with environmental standards?
Yes. This series complies with RoHS, halogen-free and HF-controlled requirements.
Send us your application details and we confirm the right grade, packaging and quotation. Samples available within 3–7 days.