Thermopaste KPT-8: description and characteristics. KPT-8 - heat conducting paste

As you know, computers and laptops become very hot during long periods of use. And the most vulnerable parts are just the processor and video card. In this regard, all manufacturers are trying to provide the most maximum cooling for these two elements. And when assembling the processor, no conscientious manufacturer can do without the use of such a substance as thermal paste. In general, this part is used not only on the conveyor for the manufacture of PC and laptop components, but is also mandatory for repairing the processor for better thermal conductivity. And today we will talk about the characteristics of KPT-8 thermal paste and how to correctly apply it.

What it is?

The thermal paste is a multicomponent element that is in a flexible plastic state. In its properties, it serves as a good thermal conductor, so it is often used to reduce the temperature resistance between the touching surfaces of computer parts. In other words, the thermal paste KPT-8 fills all the irregularities of the radiator and processor, thereby reducing their heating (by several degrees).
It is worth noting that outwardly this cavity may seem absolutely flat. But this is not so. If you look closely (preferably through specialized tools), you can see a lot of depressions and microcracks. They create a certain air cushion during operation , which prevents the normal removal of heat. As a result, the processor overheats and breaks down. To prevent this from happening, all existing microcracks are embedded with a special thermal paste, KPT-8. The removal of heat to the radiator - this is the key task that this substance performs.

Thermopaste KPT-8: reviews and features

Externally, it is a homogeneous substance of white color with a thermal conductivity of the order of 0.7-0.95 W / m 3 K. Its specific electrical resistance level is 1014 Ohm (sometimes this figure may be slightly higher than the specified norm). The operating temperature at which the thermal paste does not lose its properties is from minus 60 to plus 300 degrees Celsius. Thus, KPT-8 (reviews also note this point) provides excellent thermal conductivity under any CPU or graphics card load.

About the cost

It should be noted that this thermal paste can be sold both in a tube and in a small jar. As for the cost, 10-gram jar KPT-8 costs about 55 rubles. For a tube it is necessary to lay out approximately in 2 times more, as its weight makes 18 grammes.

Thermal paste KPT-8 and in 20-kilogram buckets are also sold, however, there is simply no point in purchasing them. For the processor it is sufficient to use only a few grams of the substance.

How to properly apply KPT-8 to the surface of the processor? Nuances

Just note that this does not need to have special skills and expensive tools. The main thing is to remember that the layer of thermal paste should be applied in such a way that the surface of the radiator and the processor fit tightly to each other. In other words, the paste should fill only the cavities and microcracks. All the rest of the space should not be handled by it.

How to start work?

First, we need to clean the surface of the chip from the remnants of the old thermal paste. You can do this with a normal soft cloth. Alternatively, you can take a jar of ethyl alcohol and handle the surface of the parts. In the latter case it is better to use cotton buds.

By the way, these are not the only examples of how you can clean the surface of the processor from the remnants of the old thermal paste. There is another effective method. He is in the use of a regular clerical band. With it, you can effectively clean the old layer of paste from the metal surface of the element. However, for this you need to have very strong fingers. Despite the physical complexity of this method, the method with an elastic band is the most safe for the processor itself and the radiator.

Next, remove the remnants of thermal paste from the bottom of the radiator cooler. Everything, now the processor is completely freed from the old paste. But do not rush to put a new one on it. First, you need to rub the "zero" layer of thermal paste into these two surfaces (that is, remove it after preliminary application). So the substance will remain only in the places we need - hollows and microcracks.

Now go to the main stage - the application. Gently squeeze a little of the thermal paste from the tube on the main chip. Many computer programmers recommend applying it diagonally crosswise. In this way, you will achieve the best gliding of the elements along the entire perimeter of the surfaces. Remember that the layer of thermal paste should be very even and, most importantly, thin (even slightly translucent). Distribute the product on the surface of the metal evenly very simply - just hold the elements with a plastic card. Do not make a centimeter layer between the processor and the radiator, using the principle "the more, the better." All this will only exacerbate the quality of conductivity and heat removal from the processor to the radiator. As a result, you simply overheat and burn an expensive element that will no longer be subject to any restoration.

The final stage

After the layer of thermal paste is evenly distributed over the surface, and the excess will be removed, you can safely fix the radiator over the processor and press it with the fastening locks. Everything, on it all repair is finished. As you can see, everything is very simple and not too difficult (except for the trouble with the removal of the old layer of paste). And most importantly - now your computer will be less exposed to various overheats and certainly will not fail because of unnecessary overload.

So, we found out what the thermal paste KPT-8 is and how to apply it correctly to the metal surface of the processor and the radiator. Remember that overheating of the processor can certainly lead to its failure. Take care of your computer and apply the thermal paste correctly.