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Dakin Engineering
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« on: January 01, 2008, 09:12:24 PM » |
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Does a wrinkle paint finish produce enough surface area to matter?  Happy New Year! Sam |
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Turbo Sportsters
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JackD
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Location: San Diego
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« Reply #1 on: January 01, 2008, 09:24:29 PM » |
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The insulation provided by the paint exceeds the presumed benefit of the wrinkle finish.
Try GUN COAT.
It goes on thin, almost like ink , and has to be cured in an oven.
Plating is another option.
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"I would rather lose going fast enough to win than win going slow enough to lose."
"That horrible smell is dirty feet being held to the fire"
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Dakin Engineering
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« Reply #2 on: January 01, 2008, 10:01:14 PM » |
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Thanks Jack, Loan me a nickel?  Sam |
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Sumner
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Blanding, Ut..a small dot in the middle of nowhere
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« Reply #3 on: January 01, 2008, 11:01:57 PM » |
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Looks nice, how about soldering some fins to those tubes?
Sum
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Dakin Engineering
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« Reply #4 on: January 01, 2008, 11:16:31 PM » |
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It's for a water/air and my best guess is that direct ice/salt packing will give the best IAT differential for 3 minutes.
Love to see other examples,
Sam
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Turbo Sportsters
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Dakin Engineering
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« Reply #5 on: January 04, 2008, 08:36:43 PM » |
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Jack,
After due consideration, I'm gonna paint the copper with anti-seize and wipe it down.
Thankee,
Sam
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Dynoroom
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« Reply #6 on: January 04, 2008, 09:31:18 PM » |
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Will you be monitoring the air in and out temps? I'd like to see how well you do with this if you don't mind.
Thanks
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Dakin Engineering
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« Reply #7 on: January 04, 2008, 11:04:16 PM » |
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Intake air temp and MAP, O2 front cylinder. K thermocouples on both pipes. A box that knows what to do with it.  And a prayer........ San |
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Rex Schimmer
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« Reply #8 on: January 05, 2008, 12:30:55 AM » |
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Why are you going to paint it at all!? If it is going to be in water the direct contact of the water to the copper is best. Any coating will reduce the rate of heat transfer.
Rex
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Rex
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Dakin Engineering
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« Reply #9 on: January 05, 2008, 10:22:09 AM » |
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During my testing with various liquids, brine being one of them, it developed quite a bit of surface corrosion. Polishing it out again got me thinking.
Silver plating would improve heat sinking, but still corrode. Not to mention the expense. (I've got a roll of silver solder and a propane bottle invested so far.)
I'm looking for the simplist, cheapest way to keep corrosion away.
Does gun blu work on copper?
Sam
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angryyouth
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« Reply #10 on: January 05, 2008, 12:39:00 PM » |
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Look into a product called Incralac, Its a sealer for bronze and copper and it doesn't brake down like normal sealers/paints. I'm not sure what reduction in thermal transfer it might cause, but I cant imagine it would be much. otherwise just let it patina.
-A
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panic
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« Reply #11 on: January 05, 2008, 06:43:31 PM » |
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IIRC Birchwood Casey used to make a copper & brass blackening product for gun hardware - try Brownell's etc.
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Dakin Engineering
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« Reply #12 on: January 05, 2008, 08:23:08 PM » |
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Thar she blows! Brass Black.
Thankee, sirs
Sam
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Rex Schimmer
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« Reply #13 on: January 05, 2008, 08:46:03 PM » |
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Sam,
If you are going to use brine maybe you should put some sort of "scrafical" anode into the tank so that the electrolsis is between the scrafical anode not your copper cooler. I think that mag works for this but I am sure some one that actually knows will post.
Rex
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Rex
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Randy Williams
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« Reply #14 on: January 05, 2008, 11:39:18 PM » |
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Sam, call Finish Line Coatings they apply Thermal Dispersants. Might work. http://www.finishlinecoatings.com/ |
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