Author Topic: Can you paint exhaust manifolds? (Read 6330 times)

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?

SkinnyG · « **Reply #1 on:** November 12, 2015, 09:54:02 am »

There is "header" paint. Some use "BBQ" paint from the hardware store.

enaberif · « **Reply #2 on:** November 12, 2015, 10:07:16 am »

I just used plain ole tremclad paint lol.

Eastonfrench · « **Reply #3 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!

philo_beddoe · « **Reply #4 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??

Eastonfrench · « **Reply #5 on:** November 12, 2015, 01:11:14 pm »

No more than 1000 degrees i would not imagine

fitz · « **Reply #6 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.

philo_beddoe · « **Reply #7 on:** November 12, 2015, 05:15:00 pm »

Ok, i got gray header paint. Up to 2000 degrees.

philo_beddoe · « **Reply #8 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!

enaberif · « **Reply #9 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.

philo_beddoe · « **Reply #10 on:** November 13, 2015, 12:09:22 pm »

How do you cure it??

enaberif · « **Reply #11 on:** November 13, 2015, 12:27:19 pm »

Read the instructions?

philo_beddoe · « **Reply #12 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?

philo_beddoe · « **Reply #13 on:** November 13, 2015, 10:19:23 pm »

Goes up to 550, close enough!

philo_beddoe · « **Reply #14 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.

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