Larry's Shee Posted April 14, 2010 Report Share Posted April 14, 2010 Stripped paint off rad, my son likes the bare aluminum wants to paint just sides and tanks. Do the fins and tubes have to be painted? Thanks. Quote Link to comment Share on other sites More sharing options...
4strokekilla1987 Posted April 14, 2010 Report Share Posted April 14, 2010 Stripped paint off rad, my son likes the bare aluminum wants to paint just sides and tanks. Do the fins and tubes have to be painted? Thanks. not a good idea to paint the fins and tubes Quote Link to comment Share on other sites More sharing options...
okbeast Posted April 14, 2010 Report Share Posted April 14, 2010 not a good idea to paint the fins and tubes Not what he was asking at all. It is ok to paint the sides and no the fins don't have to be painted. If you were to paint them just make sure there is room for air to flow through. Quote Link to comment Share on other sites More sharing options...
AKheathen Posted April 16, 2010 Report Share Posted April 16, 2010 unpainted will be fine, lol. and they do make thin paint that allows heat transfer. you might run into a some corrosion on them after several years.....severl years Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted April 16, 2010 Author Report Share Posted April 16, 2010 That was my bigest concern because some dirt is acidic. Guess I'l go with the tanks and sides satin black. Quote Link to comment Share on other sites More sharing options...
Rodneya Posted April 16, 2010 Report Share Posted April 16, 2010 Rads are painted black to transfer heat better. By leaving the fins silver you are lowering the efficiency of the rad a bit. Quote Link to comment Share on other sites More sharing options...
AKheathen Posted April 16, 2010 Report Share Posted April 16, 2010 Rads are painted black to transfer heat better. By leaving the fins silver you are lowering the efficiency of the rad a bit. WHAT????? ok, the only thing at all that the color black has to do with thermal anything is that the color black is the abscence of color, meaning it absorbs all light, thus absorbing heat from the sun.............the shit they teach you in like 3rd grade, lol. aside from that, any color paint will insulate it from transfering heat BECAUSE THERE IS A LAYER OF PAINT that heat needs to transfer. aside from repetedly spraying an evaporative liquid, like gas or alchohol, bare metal is the best for transfering heat to the air.... your theory= truth= 'nuff said Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted April 16, 2010 Author Report Share Posted April 16, 2010 Think I saw this argument somewhere else about thermal efficientcy of paint/no paint. Probably an anodizing would be best for thermal transfer and still prvide some protection. Auto manufacturers probably ony paint rad so they make it thru warenty. Ever notice how quick shit rusts up on the underside of a new car ,especially in the rust belt or near ocean? JMHO, your results will vary. Thanks AK !! Quote Link to comment Share on other sites More sharing options...
SD1026 Posted April 16, 2010 Report Share Posted April 16, 2010 i did two coats of high heat black and two coats of high heat clear and my bike stays as cool as ice. just as long as you really clean the rad good fix smashed fins you will be ok Quote Link to comment Share on other sites More sharing options...
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