73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: philo_beddoe on November 12, 2015, 09:02:19 am

Title: Can you paint exhaust manifolds?
Post by: philo_beddoe on November 12, 2015, 09:02:19 am: I am about to install two new ex manifolds. Is there a high temp gray or steel color paint that we can apply to prevent rust and corrosion?
Title: Re: Can you paint exhaust manifolds?
Post by: SkinnyG on November 12, 2015, 09:54:02 am: There is "header" paint. Some use "BBQ" paint from the hardware store.
Title: Re: Can you paint exhaust manifolds?
Post by: enaberif on November 12, 2015, 10:07:16 am: I just used plain ole tremclad paint lol.
Title: Re: Can you paint exhaust manifolds?
Post by: Eastonfrench on November 12, 2015, 10:38:29 am: They sell header paint as well at a lot of auto stores. I think it is supposed to stand a little more heat. i used it to paint my brothers exhaust (albeit farther back than the headers) and it seemed to work great.

Heres some:
http://www.autozone.com/paint-and-body/high-heat-paint/thermo-tec-11-oz-aluminum-high-heat-spray-coating/398798_0_0/

Hope that helps!
Title: Re: Can you paint exhaust manifolds?
Post by: philo_beddoe on November 12, 2015, 10:52:01 am: Looks good, i'll try that. Say, what is the average temp of a fully hot ex. manifold??
Title: Re: Can you paint exhaust manifolds?
Post by: Eastonfrench on November 12, 2015, 01:11:14 pm: No more than 1000 degrees i would not imagine
Title: Re: Can you paint exhaust manifolds?
Post by: fitz on November 12, 2015, 05:14:54 pm: Eastwood makes a brush on coating for exhaust manifolds.
I used it on my 79 Jimmy 25 years ago. Wow, time flies.
Title: Re: Can you paint exhaust manifolds?
Post by: philo_beddoe on November 12, 2015, 05:15:00 pm: Ok, i got gray header paint. Up to 2000 degrees.
Title: Re: Can you paint exhaust manifolds?
Post by: philo_beddoe on November 12, 2015, 05:18:20 pm: Yes time dont wait for no one. I remember when my 79 camaro was at the dealership!
Title: Re: Can you paint exhaust manifolds?
Post by: enaberif on November 12, 2015, 05:48:13 pm: If you don't cure header paint properly it won't stick or work good either fyi.
Title: Re: Can you paint exhaust manifolds?
Post by: philo_beddoe on November 13, 2015, 12:09:22 pm: How do you cure it??
Title: Re: Can you paint exhaust manifolds?
Post by: enaberif on November 13, 2015, 12:27:19 pm: Read the instructions? :P
Title: Re: Can you paint exhaust manifolds?
Post by: philo_beddoe on November 13, 2015, 10:16:36 pm: Okay, bake at 250, 400, 600 each 30 min. My oven dont go up to 600. Now what?
Title: Re: Can you paint exhaust manifolds?
Post by: philo_beddoe on November 13, 2015, 10:19:23 pm: Goes up to 550, close enough!
Title: Re: Can you paint exhaust manifolds?
Post by: philo_beddoe on November 13, 2015, 10:30:25 pm: Actually it can be done on the vehicle too by letting engine run and cool three times for x amount of time. All set.