High Thermal Conductivity Silicone Pads - Quality Thermal Solutions from China Suppliers and Factory
Product Introduction
Product Physical Property Table
| Product physical property table | |||||
| Test project | Unit | TP400 | TP500 | TP600 | Test Method |
| Color | - | Grey | Grey | Grey | Visual |
| Thickness | m m | 0.5-5.0 | 0.5-5.0 | 0.5-5.0 | ASTM D374/374M |
| Hardness | Shore A0 | 30±5 | 30±5 | 30±5 | GB/T531 |
| Specific Gravity | g/cm3 | 3.24 | 3.32 | 3.43 | ASTM D792 |
| Tensile Strength | Mpa | 0.14 | 0.20 | 0.22 | ASTM D412 |
| Elongation at Break | % | 32 | 60 | 16 | ASTM D412 |
| Tear Strength | KN/m | 0.70 | 0.50 | 0.50 | ASTM D624 |
| Breakdown Voltage | KV/mm | ≥8 | ≥7 | ≥7 | ASTM D149 |
| Volume Resistivity | Ω-cm | 1x1013 | 1x1013 | 1x1013 | ASTM D257 |
| Temperature Resistance Range | ℃ | -40~200 | -40~200 | -40~200 | - |
| Fire Resistance Performance | - | V-0 | V-0 | V-0 | UL 94 |
| Weight Loss | % | ≤0.2 | ≤0.2 | ≤0.2 | @150℃240H |
| Dielectric Constant | @1MHz | 6.75 | 7.92 | 7.47 | ASTM D150 |
| Thermal Conductivity | W/m·K | 4.0 | 5.0 | 6.0 | IS0 22007-2 |
| Thermal Impedance | ℃·in2/w | 0.340 | 0.295 | 0.188 | ASTM D5470 |
| Remark: The parameters in the table were measured from a 2mm standard sample. The thermal impedance test conditions are as follows: thickness 1MM, pressure 40psi, and average temperature 50℃. | |||||
| Basic specifications: It can be cut or die-cut into different shapes and sizes according to usage requirements, and fiberglass substrate or adhesive backing can be selected. | |||||
Applications
Product Features
- Wide range of thickness; can fill any uneven gaps of any size.
- Low thermal resistance, high thermal conductivity, high cost performance.
- High conformability, soft and elastic, reducing interface thermal resistance.
- Natural viscosity, easy to assemble, and can be disassembled repeatedly.
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Frequently Asked Questions
1. What is silicone thermal pad?
Silicone thermal pad is a soft thermal conductive medium made of silicone rubber as the base and filled with high thermal conductivity insulating materials. It is specially used for heat transfer between heat-generating components and heat sinks in electronic equipment. Its core function is to fill the microscopic gaps on the contact surface, reduce the interface thermal resistance, and thus efficiently conduct heat, while providing electrical insulation and mechanical buffer protection.
2. How to choose the right silicone thermal pad?
1. Thermal conductivity: The higher the thermal conductivity, the lower the thermal resistance and the better the thermal conductivity.
2. Thickness: The thickness will affect its thermal resistance and heat dissipation effect. Thinner pads have low thermal resistance and better heat transfer.
3. Hardness and softness: Gaskets with low hardness and good softness fit the radiator or heat source surface easier, reducing contact thermal resistance.
4. Working temperature range: Ensure that its working temperature range is suitable for the equipment's use environment.
5. Other factors: Pressure resistance, toughness, silicone oil content, voltage resistance, and fire rating.
3. What are the application areas of silicone thermal pads?
Thermal conductive pads are widely used in many fields such as electronic products, medical applications, automotive industry, aerospace, home appliances, power supply industry, LED industry and PC equipment.
4. What factors affect the thermal conductivity of silicone thermal pads?
1. Type and characteristics of polymer matrix materials: The higher the thermal conductivity of the matrix material, the better the thermal conductivity.
2. Type, shape and content of fillers: The shape order to form a thermal conductive path is whisker > fiber > flake > granular.
3. Humidity: The higher the humidity, the worse the thermal conductivity.
4. Thickness: Under the same material, thinner thickness means lower thermal resistance and higher efficiency.
5. Built-in substrate: In some cases, built-in reinforcements are added to enhance tensile strength.
5. What is the correct use and precautions of silicone thermal pads?
The method of using silicone thermal pads mainly includes steps such as cleaning the surface, cutting the size, pasting the gasket, removing bubbles and fixing the installation. At the same time, some matters need to be paid attention to during use to ensure its performance.
6. What customization options are available for the thermal pads?
The thermal pads can be cut or die-cut into different shapes and sizes according to usage requirements. Additionally, a fiberglass substrate or adhesive backing can be selected to meet specific application needs.