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Painting heat sinks

post #1 of 4
Thread Starter 
Obviously adding some layers of enamel to a heat sink will lower the amount of heat transferred.

However... how much is this likely to affect temperatures assuming it's a very thin layer of paint.

And are there any special techniques or paints for heat sinks that would minimise this effect?


Specifically I'm looking to paint the heat sink on one of these
    
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post #2 of 4
I dont see why it would really hurt since its not going to be a thick coat, and if you're really worried, throw a fan on it
The King
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The King
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post #3 of 4
I've painted multiple heatsinks and the difference is negligible, if there even is any. I've never seen an increase in temps before and after painting. Just keep the paint thin.
Silentium
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Silentium
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post #4 of 4
Try using a flat (no gloss) paint as they are more porous letting more heat out and creating more surface area. Metallic paints usually contain aluminum paste that will help aid in cooling as well. Best case scenario would be a flat metallic paint, duplicolor makes some.
Old Skool Redux
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