Thermal paste database version 2.0
After extensive tests and detailed measurements, I have redefined and restructured the three search criteria and the evaluation of the thermal pastes. The aim of this adjustment is to better reflect the real performance, especially for very thin layer thicknesses below 30 µm, as this area is the most relevant in practice. In previous databases and manufacturer specifications, this critical range was often not sufficiently taken into account, although it is decisive in determining how efficiently a thermal compound actually works in real application scenarios. Depending on the selected range, an average value is therefore calculated from the actual, effective thermal conductivity and used for subsequent sorting. However, all pastes are always displayed immediately, but sorted differently and adapted to the range.
| Preselection by layer thickness | |
| Smooth and even Surface |
The selection focuses exclusively on performance with layer thicknesses below 30 µm and clearly shows which pastes still perform well when applied extremely thinly. There are many contradictions here between nominal thermal conductivity values and real measurements, as filler distribution, viscosity and surface adaptation of the paste play a decisive role. Most manufacturers do not provide any specific data for this area, although it is precisely here that the thermal efficiency of a cooling system is significantly influenced. |
| Rough and uneven surface | This group refers to rather rough, curved or uneven surfaces, which occur in particular with certain CPU and GPU variants. These include CPUs in the LGA1700 socket, which place particular demands on the thermal paste due to their characteristic curvature, as well as very large monolithic GPU chips, whose surface structure also requires an adapted assessment. This segment measures how well a paste is able to ensure consistently effective heat transfer despite such unevenness. |
| Gap Filler |
This group ultimately forms an average performance value of the effective thermal conductivity across all possible layer thicknesses of a paste up to the upper limit of 400 µm. While most applications are in a significantly lower range, this group enables a holistic evaluation of the paste performance. |
| Help with the search result |
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| Skills |
The traffic light rating from 1 to 5 is based on consistency, because the more viscous a paste is, the more difficult it is to apply correctly. Green stands for liquid to normal, yellow for slightly viscous and orange for viscous. This value has no influence on the sorting, but is only a statement in the table. |
| Sticky |
Sticks the desired paste and remembers it on all displayed pages. This allows you to compare a paste from page 1 with one on page 5, for example. |
| Selection field |
If two fields are selected, a 1:1 comparison of these two pastes is possible |
| Name |
Click on the manufacturer or the name of the paste to open the detailed individual test, including material analysis (ingredients) and microscopy (particle sizes) |
This database is constantly being expanded and new products added. It is therefore always worth visiting again. Please select one of the following three selection criteria to display the results or to compare the products:
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