Introduction to the difference between the application of thermal pads and thermal grease

Introduction to the difference between the application of thermal pads and thermal grease

Both thermal pads and thermal grease can be used to assist CPU heat dissipation, so that the capacity of the CPU cooling system can be increased as much as possible, so what is the difference between the two? Choose a thermal conductivity material that is more suitable for you.
It is generally inconvenient to apply thermal grease, such as the power supply part of the motherboard. Now the power supply part of the motherboard generally generates a large amount of heat, but the MOS tube is not flat, so it is inconvenient to apply thermal grease. In this case, thermal silicone Film is the best option. Secondly, the heat sink of the graphics card needs to have multiple parts in contact with different parts of the graphics card. In this case, only thermally conductive silicone sheets can be used. For ordinary desktop CPUs, we still recommend using thermal grease, because compared with hardware, these parts are more disassembled and assembled, and using thermal grease is convenient for other operations in the future.
Other differences:
1. Insulation: Because of its fluidity and the addition of metal powder, thermal conductive silicone grease has poor insulation performance, thermal conductive silicone sheet has good insulation performance, and the electrical insulation index of 1mm thickness is above 4000 volts.
2. Form: The thermal conductive silicone grease is in the form of a paste, and the thermal conductive silicone sheet is a sheet.
3. How to use: The thermal conductive silicone grease needs to be applied evenly with care, and it is easy to contaminate the surrounding devices and cause short circuit and damage to electronic components. The thermal conductive silicone sheet can be arbitrarily cut into different shapes and sizes, and the protective film can be peeled off and applied directly, with small tolerances. ,clean.
4. Thickness: Thermal grease cannot fill gaps, and the thickness of thermal silicone sheets ranges from 0.3mm-10mm, which can fill gaps, so thermally conductive silicone sheets are relatively widely used.
5. Thermal conductivity: Under the same thermal conductivity, thermal grease has better thermal conductivity than thermal silicon sheet, because the thermal resistance of thermal grease is smaller
6. Convenience of disassembly and assembly: The thermally conductive silicone sheet is easy to re-install, but it is inconvenient to re-apply the thermally conductive silicone grease after disassembly and assembly.

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