Review on 💡 DGZZI 40mm Heatsink Kit: High-performance Cooler for 3D Printers, CPUs & LEDs - Aluminum Heat Sink Radiator with Thermal Conductive Adhesive Tape by Trevor French

3M Cloth Tape 9448A is NOT a good conductor of heat. As for the radiators, that's fine. Just a piece of metal to regulate heat; bright. The tape on the back is meant to give the layperson confidence that it will stick and dissipate heat, but the tape on the back is actually a hindrance which, if left on, will degrade the conductivity of the heatsink. Why put tape on the back when it's not designed to dissipate heat? 3M 9448A - double-sided tape; no more, and it acts as a thermal insulator rather than a conductor, making this heatsink less effective, if not downright useless. Don't trust the tape. take it off Clean it completely and attach a high quality specially made thermally conductive tape or paste. Pasta is better. I'm more than a little disappointed that I have to clean up a seller's failed attempt at looking cheap to compete where the photos show the radiators clean with no tape. Like I said, it's easy. It's a piece of metal that dissipates heat. In that respect everything is fine.