Thermal Grease for Electronic Heat Dissipation

Thermally conductive silicone grease is a silicone-grease-like compound formulated with organic silicone as the base material, blended with special metal oxides and various functional additives, and manufactured via a specialized production process. It features high thermal conductivity, reliable electrical insulation, and low oil bleeding. It can maintain stable working performance over a wide temperature range of -58°F to 446°F. This thermal grease delivers an average viscosity of 2,000,000 mPa·s at 0.3 rpm and a thermal conductivity of 2.0 W/m·K. When subjected to an operating temperature of 248°F for four hours, its volatile content is less than 0.05%.

So what is the difference between thermally conductive silicone grease and ordinary thermally conductive silicone? Both thermally conductive silicone and thermally conductive silicone grease fall into the category of thermal interface materials. Thermally conductive silicone refers to thermally conductive RTV glue, a room-temperature-curable potting compound. Its most significant distinction from thermally conductive silicone grease is that thermally conductive silicone can cure fully and comes with inherent adhesive properties.

In thermal conduction and heat dissipation applications, gaps still exist at the contact interface even between two seemingly perfectly smooth mating surfaces. The air trapped inside these gaps is a poor thermal conductor and impedes heat transfer toward the heat sink. Thermally conductive silicone grease fills these microscopic voids, enabling faster and more efficient heat transfer. These properties make thermal grease an ideal gap-filling thermal medium for electronic components.

Our company's thermally conductive silicone grease boasts excellent processability and is ready for direct application. It supports multiple dispensing methods, including brush coating, roller coating, automatic dispensing via dispensers, and screen printing. Customers should avoid diluting the product with silicone oil on their own, as self-dilution tends to cause oil bleeding and reduces thermal conductivity. We therefore recommend customers select the appropriate grade to guarantee consistent product performance.

Dongguan Deson Insulated Materials Co., Ltd was founded in 2006. We are a professional manufacturer specializing in thermally conductive materials and die-cutting services, integrating R&D, production, sales and after-sales service. Deson is dedicated to helping customers resolve challenges related to heat dissipation, electrical insulation, cushioning and waterproofing during product manufacturing. We deliver fast, effective and cost-efficient thermal management solutions, and develop custom thermally conductive materials and matching production processes tailored to customers' unique requirements. We are a top-tier manufacturer of thermal conductive sheets in China. If you are searching for popular thermal pads or would like to request a quotation, please feel free to contact us.