Black Heatsinks

OK, I forgot about the sharpie trick.

I don't know about color helping with the heat dissipation, but I'm wondering if the relatively rough surface of the anodizing will inhibit the conduction of heat from the motor to the sink. As it is, there is already the hurdle of the anodizing on the motor can.

In any case, the black heatsink would look cool.

Originally Posted by AAngel

OK, I forgot about the sharpie trick.

I don't know about color helping with the heat dissipation, but I'm wondering if the relatively rough surface of the anodizing will inhibit the conduction of heat from the motor to the sink. As it is, there is already the hurdle of the anodizing on the motor can.

In any case, the black heatsink would look cool.

I was testing a griddle protoype at work (yes, the type of griddle for cooking pancakes) and the protoype was plain milled Aluminum. It was running about 650 F for the test. When I got the black teflon coated version later on, it was 550 F max under identical circumstances. The only difference was the black coating. It does make a difference. But at our temps, I'd probably guess about 5-8% improvement.:032: Still, better than nothing.