High heat painting question.

Posted By: MidPenMopar

High heat painting question. - 04/06/12 04:21 AM

I am getting a new exhaust system custom made and will have most of the system ceramic coated black but there is a heat sheild that sits about 1 inch away from the muffler and i wanted to color it a dark blue to match my car. The powder coaterer said they is no way to either powder coat or paint it and not have the applied coating color bubble up.

Anyone find anything in a custom color coating that they can think of that would hold up to high heat like that??

Thanks
Stu

Posted By: Jeremiah

Re: High heat painting question. - 04/06/12 05:16 AM

VHT Flameproof comes in blue:

http://www.vhtpaint.com/products/flameproof/

Posted By: MidPenMopar

Re: High heat painting question. - 04/06/12 05:24 AM

Quote:

VHT Flameproof comes in blue:

http://www.vhtpaint.com/products/flameproof/

I saw that but it's all in flat, and you need a way to heat it like a giant oven.

I guess you can not get glossy finish in a high heat paint maybe?

Posted By: Andrewh

Re: High heat painting question. - 04/06/12 06:36 PM

caliper paint seems to come in high gloss and blue. just not sure it will be the same shade. can't imagine that bubbling due to temps.

Posted By: Jeremiah

Re: High heat painting question. - 04/06/12 06:47 PM

Quote:

Quote:

VHT Flameproof comes in blue:

http://www.vhtpaint.com/products/flameproof/

I saw that but it's all in flat, and you need a way to heat it like a giant oven.

I guess you can not get glossy finish in a high heat paint maybe?

How big is the heat shield? I have used VHT on all kinds of stuff (exhaust, manifolds, etc.) and never cured it in an oven. The heat of the application seems to work well if you are comfortable with that. As Andrew said maybe the disc brake paint would better suit your application.

If you were worried about curing it the powder coating place could stick it in the oven.

Posted By: 70Cuda383

Re: High heat painting question. - 04/06/12 06:55 PM

Or let the heat from the exhaust cure it?

Posted By: MidPenMopar

Re: High heat painting question. - 04/06/12 11:50 PM

Quote:

caliper paint seems to come in high gloss and blue. just not sure it will be the same shade. can't imagine that bubbling due to temps.

Say that's a great idea!!

Posted By: peabodyracing

Re: High heat painting question. - 04/07/12 01:31 AM

NIC Industries in Oregon, of which Prismatic Powder Coatings is a division, has recently come up with a high temp coating that they claim will stand up to header heat. Comes in a wide range of colors and many samples I'd seen at their booth at a Chicago trade show last fall were higher gloss. You have to be certified by them to apply the stuff. I wanted to pursue the certification for our shop but fortunately for our powder coating business, have been too busy to get away for a couple day training class. Sorry I don't know more about the process involved.

You can contact them to find out if anyone in or near the Bay area has been certified. It would likely be someone who already does powder and/or ceramic coatings. Just do a web search for NIC.

Your powder coater is correct in being concerned; best current high temp powders are good to about 1200 degrees but limited in color options to pretty much flat black and silver. Conventional powder coatings will start to fail after they've seen 400 degrees for any extended period of time. Usually they lose gloss, then adhesion in this situation.

Hope this helps.