Homemade replacement for the processor paste

Toothpaste is a topic that has been known for a long time.
There are legends that peanut butter is even better ...

I used to have a thin layer of tavern instead of paste for a while, and it generally did.
And I smeared the fan with olive oil

I am surprised no one wrote about the old method of obtaining the paste. I have known it since the 1980s, when it was not possible to buy it. The factory surplus was accumulated from the heat sinks to the box, and the stockpiled in this way was used for the needs. And this is what I have until today, it is always ... and today in the era of electronic scrap, the paste "flows in a stream" ...
greetings

Pawel_P wrote:

The factory surplus was accumulated from the heat sinks to the box, and the stockpiled in this way was used for the needs.

What do you bring to life with this solidified paste?

It was indeed "dry", but it was also fluid too much ...

spec220 wrote:

And I use the usual white H everywhere and I don't miss it.

Somewhere I read about this paste that it generally has tragic parameters and that it should not be used for PC processors. I also use it and I think it's ok for simple tasks. I wonder how it would compare with these inventions. When I figure out what it is, I will check it one day.

I personally recommend Cif. I have already seen a few laptops with the famous lotion to clean everything What's on the minds of these people ....

Or maybe silver-mercury amalgam once used by dentists for fillings? For thermal conductivity it guarantees less, for insulation

spec220 wrote:

siewcu wrote:

At the moment, you can buy up to PLN 15 of a good thermally conductive paste

And I use the usual white H everywhere and I don't miss it. I bought more, which would be even cheaper, and lasted longer ... And if there is an unusual application in which a small element with a small surface will give off over 200W of heat, I add the more expensive one with silver, and Nothing else ... And why think about butter or banana. There is always a towot at hand in the event of the W hour. (under normal circumstances, I do not recommend it)

And it depends on whether you want to have thermally conductive paste or just smear the processor / chip with something. Even the cheapest brand-name pastes have a much higher conductivity than H-type silicone, because that's what it's called (yes, processor silicone, not thermal paste). Unless the thermal conductivity of 0.88 W / mK is a sufficient result, when the basic pastes have this index at least five times higher - well, the soil is twice as high, the brick is on a similar level ... 10 times more is a bit more expensive paste, the most effective for the market even has 73 W / mK (and that's what I used, which is why the fan in my laptop is blowing all the time).

odalladoalla wrote:

Krzysztof Kamienski wrote:

Or maybe silver-mercury amalgam once used by dentists for fillings? For thermal conductivity it guarantees less, for insulation

Probably not. It is eager to create eutectic alloys also with copper, and also has a "positive coefficient of thermal expansion". Maybe in a normal situation it would not break the core, but if someone twists the "screws" on the noise and fires the Prime, it may be a surprise. I tried a Gal + "something" -term alloy Unfortunately, it also "etched" into the copper and, surprisingly, the wafer (the surface of the core) had blooms that could not be removed with isopropanol. The temperatures were 2 degrees lower than in the "silver paste" but the risk of "short-circuit beads" was serious. The excess liquid metal squeezes out with a good fit.

There are these types of eutectic pastes:

I put it on the laptop, unfortunately I did not notice the temperature drop but this is the fault of the cooling system that simply does not work.

I do not hold the laptop on my lap and I will not take the case off, because it holds the battery - it goes down as a whole. In addition, I have a larger battery anyway, so the laptop is placed on a stand And he is standing on something all the time, he has not seen the desk for a long time.

As a replacement for the paste, I use Hipol oil + black powder formed after the evaporation of colloidal silver.

There was mention of a paste from old transistors, I wonder what it is and what the transistors were lubricated in the old days, because, for example, in Unitra equipment I encountered a transparent substance.

Zinc ointment (sudocrem) or pipe soldering paste, for soft solders. And of course, for a moment, to get the real...

yogi009 wrote:

I would also try sardine oil

Reasonably. It has a good chance of working.
And sardines are perfect for a serviceman`s sandwich
A certain downside may be the smell of fish when it heats up

Homemade pastes... is an individual matter and depends on the variety of things you can find at home.
I have polymethylsiloxane and powders at home - zinc oxide, silicon carbide, silver powder, copper powder, diamond powder and I don`t remember what else.
I could make various pastes, but I don`t because I have no motivation.
Unfortunately, time is not made of rubber and toothpastes are easily available.
I bought one tube of toothpaste and it will probably last me forever.

Something that almost everyone can have at home, at a neighbor`s place or at the nearest gas station is ŁT-43 grease.
Its thermal conductivity is given in various ways - 0.2÷0.3 W/mK.
It is better than air in micro-irregularities and if the radiator surface is flat, it will fulfill its function sufficiently.
If the heat sink and processor are properly fitted, the grease layer may be around 1 µm.
After entering into the formula, it turns out that at a temperature difference of 10 K (10°C), 20 watts of heat will be transferred through one cm² of such a layer.
If the heat sink is not too small, ΔT can be e.g. 50 K and then 100 watts will flow.
ŁT-43 should withstand temperatures and there is no need to replace it.