Summary and conclusion
I wanted to show you today that data sheets alone are worth nothing if you don’t know the intended use of a material. Parker THERM-A-GAP GEL 60HF is certainly not bad on high-performance transistors in 5G transmission stations, because it is a highly efficient gap filler from around 200 µm. But it is certainly all kinds of things, just not a thermal paste for normal use. On the contrary, the application is highly problematic after burn-in, apart from the fact that the minimum BLT is far too high when used on GPUs and even CPUs.
Under pressure and at temperatures above 60 °C, as in my test, the Parker THERM-A-GAP GEL 60HF hardens to such an extent that you get a kind of thermal adhesive. This bond is so strong that I was no longer able to separate the test pieces vertically using the TIMA5’s powerful mechanics. They stuck together almost inseparably. After loosening the mounting plate, I had to use a mechanical tool to turn the lower test body around its own axis with a lot of force. This is because the test pieces are screwed together with a thread, which would have been impossible to loosen. However, I completely destroyed (scratched) the surface of the test heads.
Now imagine the damage that could have been caused by removing a cooler from the CPU or even GPU. This is exactly why you should only use things for which there are reliable tests. Links to data sheets in forums are certainly not one of them. You have to bring a healthy skepticism with you and not immediately fall into wild euphoria. I’m sure there are one or two undiscovered gems, but if you want to, you can send them to me by prior arrangement. Then, of course, I’ll also test it for the general public and add it to the database.
And the conclusion? Not everything that looks like a thermal compound necessarily works as such for the PC! More important than any information on supposed or real thermal conductivity are the specified areas of application and also the minimum layer thicknesses and temperature ranges. If some of these details are missing or do not fit, then stay away! Better industrial pastes are usually much more durable and perform better than all the gaming junk for the bona fide end user, but not without reason are usually not so easily accessible to the end customer market. It can work well, but it doesn’t have to, as the Parker THERM-A-GAP GEL 60HF unfortunately proved.
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