Non-Conductive Heat Resistant Thermal Grease Paste 3.0 W/mK for CPU GPU IGBT Power Module Cooling

Non-Conductive Heat Resistant Thermal Conductive Grease Paste for Power Electronics

HN300 (HN series) is a silicone-based thermal conductive grease paste with up to 3.0 W/m·K thermal conductivity. It is electrically non-conductive and heat resistant, remaining stable at 200°C with extremely low oil separation and volatile matter. Applied between heat-generating electronic components and heat sinks, it expels air from microscopic gaps and delivers efficient, long-term reliable heat dissipation for CPUs, GPUs, IGBT modules and power electronics.

Key Features

• Non-Conductive and Electrically Safe: Silicone-based dielectric compound will not cause short circuits or leakage, safe for live electronic assemblies.
• Heat Resistant up to 200°C: Oil separation ≤0.3% and volatile matter ≤0.7% after 24 hours at 200°C (HN300) keep long-term stability under continuous high-temperature operation.
• High Thermal Conductivity: Up to 3.0 W/m·K effectively lowers thermal resistance between chip and heat sink.
• Non-Curing and Easy to Apply: Paste stays soft and pumpable, easy to dispense, does not harden or dry out, and allows rework during assembly.
• Non-Corrosive: Safe on aluminum, copper and PCB materials without corrosion or oxidation of components.
• Multiple Grades: HN100 / HN200 / HN300 / HN400 / HN500 / HN600 available from 1.0 to 6.0 W/m·K to match different power levels.
• RoHS Compliant: Meets RoHS requirements for global electronics manufacturing.

Applications

• Between CPU and heat sink for desktop and laptop cooling
• Between GPU chip and heat sink on graphics cards
• IGBT modules, power modules and high-power transistors
• Motherboard power delivery modules (VRM) and SSD controllers
• LED lighting, power supplies and communication equipment
• Automotive electronics and EV component thermal management

Packaging and Supply

Available in 1 kg/can and 5 kg/barrel with customized packing on request. MSDS and TDS documentation provided. OEM/ODM service and free samples are welcome. Contact us for factory-direct wholesale pricing and technical support.