Subject , and the subject is not moving much (eg (e.g. a desktop PC), this will work just fine. Adhesion isn't very thermally conductive, but it works. In such cases, I would recommend thermal paste instead. If your item requires heat, if the sink is placed vertically (like mine) or face down, the grip will loosen. Adhesion to these blocks is very poor! Both when cooling and when sticking to the product to be cooled. In this case I would go for cheaper non-adhesive blocks and use a thermal…