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Spray Painting Heatsink

post #1 of 20
Thread Starter 
Hi,

I recently received a few heatsinks to put on my VRM's on my m3a770de. So, I was wondering if I could spray paint the heatsink. I would not spray paint the bottom of the heatsink, that would be in contact with the VRM's.(thermal tape)

So, what do people think about spray painting it? It will obviously have some affect on thermal conductivity, but would it be a major difrence, or would it still be a huge improvment over the un heatsinked VRM's.

Thanks,
Build it Fast
    
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post #2 of 20
I'd be afraid to do it for fear of the paint acting as an insulator.
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post #3 of 20
I wouldn't do it.
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post #4 of 20
Thread Starter 
Quote:
Originally Posted by TwoCables View Post
I'd be afraid to do it for fear of the paint acting as an insulator.
Ya, that is what I was fearing paint of course would work as a insulator, but how bad would it be?

I mean if it is only a minor difrence it would not be that bad.
    
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post #5 of 20
Same I wouldn't attempt it.
You might be better to source someone who does anodizing and get them to do it for you, or just buy the colour heatsinks you prefer.
Most paints you buy at the store probably wouldn't do well with the steady hot temps.
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post #6 of 20
Quote:
Originally Posted by TwoCables View Post
I'd be afraid to do it for fear of the paint acting as an insulator.
Maybe he could pack Bondo over the heatsinks and just paint the Bondo. That way he wouldn't have any paint on the heatsinks. Problem solved
    
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post #7 of 20
Quote:
Originally Posted by Build It Fast View Post
Ya, that is what I was fearing paint of course would work as a insulator, but how bad would it be?

I mean if it is only a minor difrence it would not be that bad.
It would be very bad. Your heatsinks would lose the ability to dissipate heat immensely. Even with a light coat, it would still be more than those tiny heatsinks would be able to overcome due to their size.
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post #8 of 20
The paint will act as an insulator. A very thin insulator, but still an insulator.

Majority of what makes up paint are polyesters, epoxies, etc. ie. plastic. So you are essentially plastic coating the heat sinks.
post #9 of 20
not worth it in my opinion. if you wanted a color, you should of purchased that color, anodized, not painted.
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post #10 of 20
I think that this is why we don't see any painted heatsinks, but rather anodized heatsinks.
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It's a computer!
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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