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Old 05-12-2011, 10:48 PM   #1
ROBERT JAM
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Default will powder coat on headers work?

I just had the local powder coater tell me that powder coat will work on headers.I thought the header would be to hot for the powder coating.Any one give me some good info on this
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Old 05-12-2011, 10:51 PM   #2
Da Tinman
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Default Re: will powder coat on headers work?

no, powder cures at 450 degrees, headers get a lot hotter than that. Powder coating is a plastic so its just gonna melt off.

there are a couple spray on coatings that a local guy uses, but they arent powder.
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Old 05-12-2011, 10:52 PM   #3
Tman
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Default Re: will powder coat on headers work?

Ugly with standard powder. Yes, it will bake
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Old 05-12-2011, 11:00 PM   #4
ROBERT JAM
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Default Re: will powder coat on headers work?

Thanks I thought so.Didnt want to screw up my sanderson flathead headers
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Old 05-13-2011, 12:06 AM   #5
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Default Re: will powder coat on headers work?

you could put a ceramic coating on them its baked on like powder coating and now you can get the ceramic coating in just about any color and in a chrome color
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Old 05-13-2011, 12:49 AM   #6
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Default Re: will powder coat on headers work?

Big Fire, very bad.
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Old 05-13-2011, 01:41 AM   #7
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Default Re: will powder coat on headers work?

The ceramic holds up very well. I had some exhaust manifolds done about 14 years ago and they still look good.
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Old 05-13-2011, 01:18 PM   #8
High Plains Drifter
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Default Re: will powder coat on headers work?

eastwood offers a high temp powder coating for exhaust but its crap! stay away from that! I own a powder coat shop and we ceramic coat exhausts for customers. I had my headers on my 51' powder coated with the high temp powder about 12 years ago. Its fine if you dont brush up against it or touch it, the stuff just flakes off!
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Old 05-13-2011, 01:42 PM   #9
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Default Re: will powder coat on headers work?

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Originally Posted by High Plains Drifter View Post
eastwood offers a high temp powder coating for exhaust but its crap! stay away from that! I own a powder coat shop and we ceramic coat exhausts for customers. I had my headers on my 51' powder coated with the high temp powder about 12 years ago. Its fine if you dont brush up against it or touch it, the stuff just flakes off!
OOPS! I did my headers on my model A and like it. so I was going to blast the headers on the 442 and use the eastwood high temp header coat. maybe have to rethink this
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Old 05-13-2011, 01:46 PM   #10
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Default Re: will powder coat on headers work?

A local powder coater does black and silver powder coat that holds up on the exhaust,,at least it has on mine. HRP
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Old 05-13-2011, 01:47 PM   #11
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Default Re: will powder coat on headers work?

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Originally Posted by ROBERT JAM View Post
I just had the local powder coater tell me that powder coat will work on headers.I thought the header would be to hot for the powder coating.Any one give me some good info on this
mostly NO.
I use the high heat powders for motorcycles etc but it doesnt hold up to V-8's at all.
Dupont makes one called "pipe black" that is supposed to be good for 1000* F , havent tried it yet though.
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Old 05-13-2011, 01:48 PM   #12
turboroadster
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Default Re: will powder coat on headers work?

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Originally Posted by 56oldsDarrin View Post
Big Fire, very bad.
sigh....no fire, but it would get to hot and flake away over time.
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Old 05-13-2011, 01:51 PM   #13
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Default Re: will powder coat on headers work?

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Originally Posted by HOTRODPRIMER View Post
A local powder coater does black and silver powder coat that holds up on the exhaust,,at least it has on mine. HRP
v-8 motor? black and silver high heat can be gotten from Caswell, but have had zero luck with longevity on v-8's, the high HP v-8's will burn it off in no time flat.
I have heard good stuff about the dupont "pipe black" from another coater, but havent tried it myself yet.
I dont know of a silver available besides the caswell and again, their stuff works great on motorcycle headers etc
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Old 05-13-2011, 03:30 PM   #14
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Default Re: will powder coat on headers work?

you can powder coat motorcycle pipes and headers cause those pipes only get to about 700deg and that was after a long ride right after it pulled n to the shop.
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Old 05-13-2011, 03:41 PM   #15
model A hooligan
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Default Re: will powder coat on headers work?

bbq paint works good if your poor like me and cant afford the ceramic coatings
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Old 05-13-2011, 03:56 PM   #16
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Default Re: will powder coat on headers work?

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Originally Posted by customs by jason View Post
you can powder coat motorcycle pipes and headers cause those pipes only get to about 700deg and that was after a long ride right after it pulled n to the shop.
and that still tends to fail, the coater here did a thunder header for a local guy and I watched it bubble right after start up. Send them to Jet Hot, ive never had an issue.
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Old 05-13-2011, 04:04 PM   #17
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Default Re: will powder coat on headers work?

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and that still tends to fail, the coater here did a thunder header for a local guy and I watched it bubble right after start up. Send them to Jet Hot, ive never had an issue.
ive done one set and it has lasted for about a year with no problem alot has to do with prep of the parts and if they were cured at the right heat and for the right time
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Old 05-13-2011, 04:08 PM   #18
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Default Re: will powder coat on headers work?

I have flame spray on our headers
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Old 05-13-2011, 07:25 PM   #19
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Default Re: will powder coat on headers work?

Doesn't matter how they're done, powder coating wont hold up unless the curing temp is higher than the operating temp. I had an extensive conversation with the local powder coater and he said they use either 250 degree temp or 400 degree temp, and every time you get things hotter than that it will get sticky again.
Once it's sticky every bit of dirt and crud will stick to the "wet" coating and soon it will look ugly. If it gets way over the curing temp it will simply bubble and smoke away.
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Old 05-13-2011, 07:49 PM   #20
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Default Re: will powder coat on headers work?

Ceramic coat is the way to go. Another great option is porcelain.
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