Frequently asked questions

What's the difference between thermal conductive adhesive and ordinary adhesive tape?

Speaking of thermal conductive tape, you may associate with ordinary tape.

For some special products, general thermal conductive materials are difficult to play a role of both thermal conductivity and strong adhesion to important parts of electronics. Therefore, the thermal conductive double-sided adhesive completely solves the above problems. Especially in the field of electronics, LED lighting industry and LED TV has played a considerable role. The most effective way to solve the problem of heat conduction and heat dissipation is to fix the heat conductive double-sided adhesive on IC radiator. It is specially used for the double-sided adhesive of radiator and chip. In this way, the use of LED lighting is more convenient, the heat conductive double-sided glue between the LED and heat dissipation aluminum can be pressed with a little force, and the installation is also very convenient and fast. The thermal conductivity effect is more remarkable than that of ordinary thermal conductive adhesives.

It is believed that many manufacturers who have used thermal conductive materials are familiar with this thermal conductive material, but many people who do not know much about the thermal conductive material industry estimate that the price of the first purchase is several times that of the ordinary double-sided adhesive. So what I want to talk about today is why the price of thermal conductive double-sided adhesive is several times higher than that of ordinary adhesive paper.

First of all, we know that the heat conductive double-sided adhesive can be divided into base material and non-base material according to the different materials. It can also be classified according to the composition of the base material and glue. Its main material components are divided as follows:

1. Substrate and non-Substrate

2. Non-base material, cotton paper, PET, foamed cotton, non-woven fabrics and cloth

3. Water-borne acrylates, oily acrylates, solvent-based rubber, hot-melt adhesives and organosilicons

Non-base double-sided adhesive is only adhesive film, so to achieve the same bonding performance, the total thickness of the adhesive is smaller, more flexible and better serviceability. The disadvantage is that the adhesive layer will overflow when the ambient temperature is higher. The common double-sided adhesive used in our daily life is a kind of rolled adhesive tape, which is made of paper, cloth and plastic film as the base material, and then uniformly coated with elastomeric pressure sensitive adhesive or resin pressure sensitive adhesive on the above-mentioned base material. It consists of three parts: base material, adhesive, profiling paper (film) or silicone oil paper.

So through the simple description above, you should know the huge difference between the two materials, which directly leads to the huge price gap. In this you should know that ordinary double-sided adhesive is not thermal conductive effect, if you need to play a thermal conductive effect, you must use thermal conductive double-sided adhesive.

In addition, the heat conductive double-sided adhesive is usually placed between the heat sink and the heat sink, so that the heat sink is firmly fixed on the role of heat sink, which is conducive to improving production efficiency. Its heat dissipation effect is more obvious than that of general heat dissipation stickers, which greatly improves the life of components. Its thermal conductivity is high and stable. It can work at room temperature (80-120 degrees) for a minimum of 5 years. It can be cut into specific specifications. Today, the most widely used areas are: electronic appliances, LED lighting, hardware industry, printing industry and other electronic and electrical manufacturing industries.

How to use the heat conductive gasket?

Any product can play its greatest role only by using the correct method of use. If it is used improperly, it will produce adverse effects. The same is true for thermal conductive gaskets. We should pay attention to the following points when using them:

A. Keep the contact surface clean with the thermal conductive silicone film, so as to prevent the self-adhesive and thermal conductivity of the thermal conductive silicone film from being affected by stains.

B. When taking thermal conductive silicone film, the large thermal conductive silicone film should be picked up from the central part of the bottom, and the smaller area should not be required, because the large thermal conductive silicone film is easy to be subjected to uneven force, resulting in product deformation, affecting performance and even damage the silicone film.

C. When tearing off the protective film, first tear off one side of the protective film. It can not tear both sides at the same time, which can reduce the direct contact times of thermal conductive silicone film, and maintain the self-adhesive and thermal conductivity of thermal conductive silicone film.

D. After tearing off one side of the protective film, align the thermal conductive silicone film with the radiator and adhere to it. Attention should be taken to avoid the formation of bubbles when bonding. If bubbles are produced during bonding, the bubbles should be pushed out in time.

E. If bubbles occur in the operation, one end of the silicone film can be pulled up to repeat the steps mentioned above, or the bubbles can be gently squeezed out by means of tools, but bear in mind that the strength should not be too large, so as to avoid damage to the heat dissipation surface of the thermal conductive silicone film.

F. Tear off the protective film on the other side and put it into the radiator. When tearing off the protective film on the other side, the strength is not too high. Because the adhesion of the thermal conductive silicone film is different, avoid pulling up the thermal conductive silicone film.

G. After tightening the thermal conductive silicone film, pressure should be applied to the radiator and placed in a dry place for a period of time to ensure that the thermal conductive silicone film is fixed on the contact surface.

What are the advantages of thermal conductive silicone grease over silicone grease?

Easy to install, easy to repair, high clearance, can improve power