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Exhaust manifold painting --- or dry graphite?

Posted: Wed Aug 05, 2015 10:10 am
by RonD2
I was thinking I'd paint my new exhaust manifold with some of that high temp primer and paint but discovered it requires curing in the wife's oven for several hours.

Or, I came across this that looks like a pretty good alternative:

http://streettechmag.com/2015/05/04/how ... -manifold/

Supposed to be good to 850 degrees.

Has anybody tried using aerosol dry graphite lube with good results?

PB Blaster and CRC make some. Have to see if my local auto parts store carries it. Cheaper than primer and paint and won't stink up the house for 4 hours then have to scrub the oven afterwards to keep the missus from launching on me 8O .

Posted: Wed Aug 05, 2015 12:46 pm
by 4x4M38
Ron,
There is automotive header paint in rattle cans.

Posted: Wed Aug 05, 2015 2:13 pm
by Bretto
I just used some black BBQ paint off the shelf at the store. It's held up pretty good so far.

Posted: Wed Aug 05, 2015 2:42 pm
by Hawkshadow
X2 on the BBQ paint. It just dries a little dusty.

Posted: Thu Aug 06, 2015 8:48 am
by skyjeep50
I used Rust-Oleum High Temperature paint on my M38 exhaust manifold. Sprays on like conventional paint - for applications up to 1000 degrees. The pic is from about 2 years ago, the manifold looks the same today. Works well!
Image

Posted: Thu Aug 06, 2015 9:17 am
by wesk
Skyjeep,
How did your gray paint hold up at the heat box to exh manifold joint? Can you post a closeup of that area?

Posted: Thu Aug 06, 2015 12:30 pm
by javierv8
Hello: I used this paint from Eastwood: http://www.eastwood.com/factory-gray-hi ... ating.html
Looks like sand-blasted iron and last forever... Brush application is easy and requires not disassembly and I always cured it with own manifold heat during use!!!
Image
hosting imagenes

(Its a CJ3A engine...)

Posted: Fri Aug 07, 2015 12:15 pm
by skyjeep50
Wes - Here is a closeup of the heat box/manifold area. The grey paint is regular spray paint and is holding up well. The black paint on the exhaust manifold is High Temp paint. Note: the engine block is painted gray - it looks darker because it is in deep shadow, the steering gear is OD.
Image

Posted: Fri Aug 07, 2015 3:07 pm
by wesk
Thanks