I bought this to connect multiple heatsinks on my aluminum case laptop (Matebook X Pro). There was a noticeable drop in CPU and GPU temperatures, and the case got a little hotter, so they seem to conduct heat quite well. I can't measure conductivity objectively, but it did what I bought it for. One note: it's not as soft as the Artic MX material, so your tolerances will need to be a bit tighter.