One of the members here asked me some advice on removing CoolLab comp. from the CPU or GPU.

This is the answer i received just now from the nice guys over at Coollab

Regarding the removal of our products:
The Liquid Pro can be wiped off. Remains that will not come off easily that way can be removed with help of metal polish that is e. g. used for polishing chrome body parts in automobiles.

If you want to remove the Liquid MetalPad, you can peel it off the contact area carefully. Depending on the structure of the surface it should peel off very easy and may leave small residues. You can remove these quickly and simply with a metal grinding pad or polish too.
You can also leave the residues in the depressions on the contact areas, because they rather improve the cooling performance when using other pastes.

This should cover it all :-)