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<blockquote data-quote="Danny" data-source="post: 176983" data-attributes="member: 132"><p>since I'm from the heatsink industry, our researchers have already tested different colours for heat transfer purpose. The result - there is very little or no difference (less than 1%) in cooling capability from one colour to the other. So you can even paint them pink if you want. The main difference is the type of material being used. The tests are done for computer cpu heat dissipation though up to 100+ watts of power, it does not take into account sunlight absorbtion. </p><p></p><p>What dolly said is correct, a layer of whatever paint will slow down the heat absorbtion and dissipation properties, since it has an 'extra' later of resistance before the heat can be absorbed/dissipated. The best result is to leave it in its natural colour, or, coat it with better heat transfer material than aluminium ie. nickel, copper, silver or gold.</p></blockquote><p></p>
[QUOTE="Danny, post: 176983, member: 132"] since I'm from the heatsink industry, our researchers have already tested different colours for heat transfer purpose. The result - there is very little or no difference (less than 1%) in cooling capability from one colour to the other. So you can even paint them pink if you want. The main difference is the type of material being used. The tests are done for computer cpu heat dissipation though up to 100+ watts of power, it does not take into account sunlight absorbtion. What dolly said is correct, a layer of whatever paint will slow down the heat absorbtion and dissipation properties, since it has an 'extra' later of resistance before the heat can be absorbed/dissipated. The best result is to leave it in its natural colour, or, coat it with better heat transfer material than aluminium ie. nickel, copper, silver or gold. [/QUOTE]
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