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Powder coating chassis
#274854
04/02/09 08:19 AM
04/02/09 08:19 AM
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Joined: Jul 2006
Posts: 388
Michigan
SD800
OP
enthusiast
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OP
enthusiast
Joined: Jul 2006
Posts: 388
Michigan
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Guys need to know if my mild steel full tube chassis will certify if I powder coat it, looking for it to certify to 7.50
Thanks
You'll have plenty of time to sleep when your dead, let's go
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Re: Powder coating chassis
[Re: SD800]
#274855
04/02/09 08:33 AM
04/02/09 08:33 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I dont see why not, he will scrape the coating off in 1 place to get a true reading then he will just subtract the coating thickness, that what he did with my painted chassis. Yoy might find it harder to see cracks in the chassis with the powder coating but I dont know for sure 
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Re: Powder coating chassis
[Re: mr_340]
#274857
04/02/09 07:28 PM
04/02/09 07:28 PM
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Joined: Feb 2005
Posts: 214
Hershey,PA
mracer360
enthusiast
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enthusiast
Joined: Feb 2005
Posts: 214
Hershey,PA
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Quote:
Quote:
Guys need to know if my mild steel full tube chassis will certify if I powder coat it, looking for it to certify to 7.50
Mild steel should be OK. I wouldn't powder coat a 4130 chassis as the heat treat characteristics start changing at around 450°F. I have a Metals Handbook that shows a drop in strength for 4140 (I know it's not the exact same alloy) and also toughness. Strange property to lose both as they usually go in opposite directions. There are some lower temperature powder coating materials available to keep it under 400°F. 
Most powder coatings cure at 375 degrees F or below, some as low as 300.
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Re: Powder coating chassis
[Re: The Avg. Valiant]
#274860
04/03/09 02:59 PM
04/03/09 02:59 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
The ovens are so damn complicated now, they can control everything, humidity, temp, time, etc. Thats part of the reason they cost a fortune.
I had a intake powder coated, the process called for
325 and it was dead on for the time to cook with in
a couple degrees.
I also have seen power coated chassis being certed
when I got mine done the last time... he passed
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Re: Powder coating chassis
[Re: 72 Dodge demon]
#274862
04/03/09 11:55 PM
04/03/09 11:55 PM
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Joined: Feb 2009
Posts: 345
Arkansas
JoWeTu_6
enthusiast
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enthusiast
Joined: Feb 2009
Posts: 345
Arkansas
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Mine was just cirt last mounth, it is hammer toned powder coated  and it pasted just fine. (three years) JoWeTu_6 
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Re: Powder coating chassis
[Re: Ted P]
#274866
04/06/09 09:13 PM
04/06/09 09:13 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
It will cert. for the NHRA. I do certs in the chicago area. I was told that IHRA have changed their cert and it won't for them. For now you're good for a NHRA cert.
Isnt it sorta supid that its powder coated and they
(IHRA) wont cert it, all they need to do is scrap the
powder coating off to get the base line then shoot
through the coating from there on, thats all they did
for my painted chassis. I cant imagine the IHRA saying
sorry your chassis is scrap 
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