I am trying to understand how a coat of paint, even a thin one can help with heat dissipation. If so, then why don't the manufacturers of aluminum radiators paint the ones which they sell for high performance engines?
The manufacturing process for aluminum radiators is very neat and clean. Conversely, the soldering process involved in the manufacturing process for a brass radiator is not so neat or clean. I tried to clean and polish the tank on mine, but stopped due to spattered solder all over the place. Another reason to paint the brass ones is to prevent corrosion.
I have heard of the heat dissipation theory a number of times before, but I am curious as to the source of the science/physics/chemistry behind the theory.
Carl