heat disapating coatings
heat disapating coatings
(OP)
I have designed an electrical enclosure for outdoor use. The sealed enclosure was field tested and it was found that spraying black BBQ paint inside the box reduced the inside temperature by 4 degrees. It is made of 0.059" 3CR12 stainless steel powder coated light green on the outside.
Can anyone explain to me why a temperature drop was noticed?
Can anyone recommend any coatings that could disapate the heat better?
Can anyone explain to me why a temperature drop was noticed?
Can anyone recommend any coatings that could disapate the heat better?
RE: heat disapating coatings
Here are some websites that mention various kinds of heat dissipating coatings (mostly for automotive use.) Maybe you'll be able to get some info from them.
Gun Kote
http://www.metalcraft-ar15.com/accessories.htm
Automobile header coatings - heat insulating and heat dissipating:
http://www.hpcoatings.com
Other auto heat dissipating coatings:
http://www.nacsracing.com/Banshee.htm
http://www.ram-pro.com/PAGE12.HTM
http://www.sdl.usu.edu/conferences/smallsat/proceedings/13/tech-ix/ts-ix-4.pdf
http://www.hotrod.com/editorial/article.jsp?id=51120
RE: heat disapating coatings
RE: heat disapating coatings
If you want the 3CR12 housing to emit even more of that heat away, you would also paint it a matt black. However, if the sun shines on this new, black, external surface it will absorb more heat and could reverse the process, so this measure would need proper thought first, depending on where the box is located.
Low emissivity coatings are available too - they are used on cement and lime kilns to save fuel. Companies like Dampney should have more information and I suspect a Google search will reveal others.
RE: heat disapating coatings
RE: heat disapating coatings
I am not sure of the make up in bbq paint verse flat black but I would think the bbq paint may dissapate the heat a bit better because it is designed to be used with higher temps.
I am a coating applicatior and we have a coating we use for heat dissaption that works great. It can be used for electical motors, radiators, air cooled cyl. and many other applications. We used it on a gentlmens Harley that he use to run flat black paint on. Our coating made his oil temp drop 40 degrees. This helped keep a lot of heat off of him in the hot weather as well as protect the motor. If you would like to see the coating go to www.xpcoatings.com If you email me I can give you more info. Hope this helps.
Glen