Silicone Thermal Pads

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What is Organic Silicone Thermal Pad?

Silicone thermal pad is a high-performance thermal management material composed of organic silicone rubber and high thermal conductivity fillers. Volsun’s organic silicone thermal pads can achieve low interfacial thermal resistance even under relatively low pressure, demonstrating exceptional thermal conductivity. Their unique material formulation provides superior thermal stability, softness, and resilience, ensuring safety and reliability during use.
These silicone thermal pads are widely used between power devices and heat dissipation aluminum sheets or machine casings. They effectively eliminate air gaps, creating a tight thermal pathway that significantly enhances heat dissipation efficiency. Whether for high-power electronic equipment or precision machinery, Volsun’s organic silicone thermal pads offer ideal thermal filling effects, contributing to stable device operation and extended lifespan. Their outstanding comprehensive performance makes them the perfect choice for thermal management applications.

Advantages of Volsun Silicone Thermal Pads

Volsun silicone thermal pads are a type of thermal interface material widely used in electronics, electrical, automotive and other fields. They are mainly used to fill the gap between heating components (such as chips, power devices) and heat sinks to improve heat transfer efficiency. As a professional leading manufacturer, Volsun silicone rubber thermal conductive pads have significant advantages in the field of heat dissipation due to their unique material properties and engineering adaptability.

Core Advantages

Volsun silicone thermal pads, a revolutionary solution in the field of heat dissipation, have shown irreplaceable value in the fields of industry, automobiles, high-end consumer electronics, etc. with their excellent multi-functional integration advantages. Its high thermal conductivity, by adding high-performance thermal conductive fillers, achieves a thermal conductivity of 1~8 W/(m·K). At the same time, the soft material can be compressed by about 50%, closely fitting the surface, significantly reducing the contact thermal resistance, and ensuring efficient heat dissipation.
The electrical insulation is as high as 10¹² Ω·cm, the voltage resistance is 6 kV/mm, and the flame retardancy certified by UL94 V-0 provides safety protection for high-voltage scenarios. The silicone rubber matrix gives it high elasticity and tear resistance, adapts to vibration environments, and is resistant to aging and chemical media. It can work stably at -40℃~200℃ for a long time and has a long service life.
The performance is stable under extreme temperatures, and it has passed RoHS and REACH certification. The ready-to-use design does not require coating and curing. The solid physical properties prevent liquid materials (such as silicone grease) from overflowing and contaminating sensitive components, making installation and maintenance convenient.

Silicone Thermal Pads

What are the Categories of Thermal Conductive Pads？

Thermally conductive pads are a key material used to improve the heat dissipation efficiency of electronic devices, and widely used in electronic equipment, automobiles, industrial machinery and other fields. According to different application requirements, thermally conductive pads can be divided into the following main types:

Organic silicone-based thermally conductive pads

This type of pad is based on organic silicone rubber, has good flexibility and compressibility, and is suitable for a variety of applications. They are easy to install, can adapt to uneven surfaces, fill gaps and reduce thermal resistance.

Graphite thermally conductive pads

Utilizing the high thermal conductivity of graphite, it is particularly suitable for large-area planar heat sources such as LED panels and large integrated circuits. Volson can customize thermal conductive silicone pads of different hardness according to the specific structure and heat dissipation requirements of the equipment to meet the needs of special application scenarios.

Composite thermal conductive pads

Made of a variety of materials, it combines the advantages of different materials, such as thermal conductivity, elasticity and durability. You can choose single-sided or double-sided adhesive as needed, which is more convenient to install.

Non-silicone-based thermally conductive pads

Including polyurethane, acrylic and other matrices. These materials usually do not contain silicone oil, so they are more advantageous in some special applications (such as optical equipment) and avoid the pollution problems that may be caused by silicone oil.

Metal-based composite thermally conductive pads

Combine the characteristics of metals (such as copper or aluminum) and thermally conductive fillers to provide extremely high thermal conductivity and good mechanical strength. Suitable for application scenarios that require high thermal conductivity and structural support.

Applicatons

Used for Electronic Equipment Industry

In the field of electronic equipment, silicone thermal pads play a vital role. For the CPU and GPU in high-performance computers and game consoles, these pads are precisely placed between the processor and the heat sink to fill the tiny gap and ensure that heat can be efficiently transferred, thereby reducing thermal resistance, improving heat dissipation efficiency, ensuring stable operation of the CPU/GPU, and preventing performance degradation or damage caused by overheating. Similarly, in the power module, the silicone thermal pad connects the power module with the heat sink or the housing, quickly conducts away the heat generated when converting electrical energy, maintains the module within a safe temperature range, and effectively improves its conversion efficiency and service life. For LED lamps, these silicone thermal pads connect the LED chip with the heat sink, effectively manage the heat generated during the light-emitting process, keep the chip running at a low temperature, and significantly improve the light-emitting efficiency, stability and overall life of the LED lamp. Through these applications, silicone thermal pads have become an indispensable key component for thermal management of electronic equipment.
Used for Automotive Electronics Industry

In the field of automotive electronics, the application of silicone thermal pads has significantly improved the thermal management efficiency of the system. For key components such as inverters, battery management systems (BMS), and on-board chargers, these silicone thermal pads play an indispensable role. In the inverter, the silicone thermal pad closely connects the heat sink and the power device, effectively conducts away the heat generated during high-frequency switching, and ensures the stable operation and long life of the inverter. In the battery management system (BMS), the thermal silicone pad is used to connect the battery module and the heat sink, accurately manage the heat generated during the battery charging and discharging process, prevent overheating, and ensure the safety and performance of the battery. For the on-board charger, the silicone thermal pad ensures the rapid conduction of heat during the charging process, maintains the stable operating temperature of the charger, and improves the charging efficiency and reliability of use. Through these applications, silicone thermal pads provide an efficient and reliable solution to the heat dissipation problem in the automotive electronics industry.
Used for New Energy Industry

In the field of new energy, silicone thermal pads also show excellent heat dissipation performance. For core equipment such as photovoltaic inverters and energy storage systems, the application of these silicone thermal pads is crucial. In the photovoltaic inverter, the silicone thermal pad connects the inverter and the heat sink, effectively conducts away the heat generated when the solar panel converts electrical energy, keeps the inverter running at a low temperature, improves the conversion efficiency and service life, and ensures the stable output of the solar power generation system. In the energy storage system, the thermal conductive pad is used to connect the energy storage battery and the radiator, accurately manage the heat generated during the charging and discharging process, maintain the low temperature operation of the battery, improve the charging and discharging efficiency and service life of the energy storage system, and ensure the stability and reliability of the system. The application of silicone thermal conductive pads in the new energy industry provides strong thermal management support for the further development of photovoltaic power generation and energy storage technology.

How to choose the thermal pad?

When choosing a silicone thermal pad, the following factors need to be considered to ensure the best heat dissipation effect and long-term stability

Thermal conductivity

For electronic devices with higher power density, such as server CPUs, high-end graphics cards, etc., it is recommended to choose silicone thermal pads with a thermal conductivity greater than 5W/(m·K). Such silicone thermal pads can quickly conduct heat, effectively reduce the hot spot temperature, and ensure stable operation of the device. For devices with lower power density, such as smart home controllers, LED lighting, etc., you can choose a pad with a suitable thermal conductivity according to the actual heating situation.

Hardness

For devices with uneven surfaces or tiny protrusions, such as some power modules or radiators, it is recommended to choose thermal conductive silicone pads with lower hardness. This type of thermal pad has good compressibility and fit, can fit the surface tightly, reduce air gaps, and improve heat dissipation efficiency.
Volson can customize thermal conductive silicone pads of different hardness according to the specific structure and heat dissipation requirements of the equipment to meet the needs of special application scenarios.

Thickness

Choose a thermally conductive silicone pad of appropriate thickness to ensure that it can completely fill the gap between the device and the heat sink after compression, and avoid the thermal pad being too thick to increase thermal resistance and affect the heat dissipation effect. For example, in the automotive electronics industry, due to large vibrations and large temperature changes, it is recommended to choose a silicone thermal pad of a certain thickness to adapt to the gap changes and ensure long-term reliability.

Environmental factors of use

In harsh environments such as high temperature, oil pollution or vibration, such as automobile engine compartments, industrial inverters, etc., it is necessary to choose special process silicone thermal conductive pads that are resistant to high temperature, oil pollution or vibration. Such thermal pads can work stably for a long time and are not affected by environmental factors.

FAQ

How to ensure the quality of thermal pads?

We adopt a strict quality control system, and everything from raw materials to finished products is strictly tested to ensure that the product quality meets the standards.
Do you accept customization?

Yes, we accept customization. You can customize the color, size, pre-cut shape, and whether it has adhesive backing according to your needs.
What are the thickness and hardness options of thermal pads?

The thickness range is 0.5mm-5mm, and the hardness (Shore 00) is between 30-70, which can be selected according to needs.
What is the insulation performance of silicone thermal pads?

Our thermal pads have excellent insulation performance and the resistivity is greater than 10¹²Ω·cm.
What is the range of thermal conductivity of thermal pads

The common thermal conductivity range of our thermal pads is 1-8W/(m·K), and products with higher thermal conductivity are under development.

Silicone Thermal Pads

Silicone Thermal Pads

What are the Categories of Thermal Conductive Pads？

FAQ

How to ensure the quality of thermal pads?

Do you accept customization?

What are the thickness and hardness options of thermal pads?

What is the insulation performance of silicone thermal pads?

What is the range of thermal conductivity of thermal pads

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