Thread: Powder-coating?
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Old 02-25-08 | 09:48 AM
  #7  
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j0e_bik3
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Originally Posted by o_perkins
I was going to get my track frame powder coated but someone told me that it weakens the metal. Does anyone know anything about this? Is that true?
if you take a piece of raw steel and bend it, it'll make a 90 degree bend easily
and it'll hold that shape, now take that same piece of steel and heat it till it's red hot (750+degrees) and then quench it in cold water,......now try and bend it,.....more than likely it'll snap into two pieces, because the heat/quench has created martinzeiss steel(forgive if I spelled it wrong), NOW,...take that SAME piece of steel and heat it gently to about 450-500 degrees (close to powdercoat temprature) and then let it cool slowly (no quench), NOW try and bend it, and you'll find that it bends, but will snap back like a spring.

so I guess the real question here is:

will the heating and slow cooling of the powdercoat process RE-TEMPER the steel? or will it SOFTEN (anneal) the steel?
(I SERIOUSLY doubt you could remove significant amounts of metal by blasting, unless it's soft aluminum, and you are using carbide as the media, which will never happen in the real world, so that point is moot IMO)

and this needs to be answered by a metalurgist, or a machinist with good metalurgy knowledge, or a frame builder, and NOT by a powdercoater (no offense to any powdercoaters out there) as I personally would like a qualified answer simply because of all the internet MYTHS out there.


someone please answer this, and put this to rest.
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