Header Coatings

[djbr459]

Hi Mopar Folks,
Has anyone had any luck with spray on header coatings?
Looking for recommendations.
Thanks

 

[snakeoil24]

All junk

 

[multimopes]

The only thing they might do is to help delay rust!

 

[Rusty34]

Yes! There is one that absolutely will last. DGF spray (dry graphite film). It sprays on like a thin film of paint and dries to the touch. I sprayed some glass bead cleaned exhaust manifolds 10 years ago and they still look as good as the day I sprayed them. I'm a retired old school engine builder and we used it for many years on flat tappet cams and the bottoms of the lifters to get through the break-in process on the dyno with stiff valve springs.

 

[snakeoil24]

Yes! There is one that absolutely will last. DGF spray (dry graphite film). It sprays on like a thin film of paint and dries to the touch. I sprayed some glass bead cleaned exhaust manifolds 10 years ago and they still look as good as the day I sprayed them. I'm a retired old school engine builder and we used it for many years on flat tappet cams and the bottoms of the lifters to get through the break-in process on the dyno with stiff valve springs.

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Tell me more please any pictures???

 

[djbr459]

So it's actually a lubricant, interesting.

 

[HALIFAXHOPS]

Yes! There is one that absolutely will last. DGF spray (dry graphite film). It sprays on like a thin film of paint and dries to the touch. I sprayed some glass bead cleaned exhaust manifolds 10 years ago and they still look as good as the day I sprayed them. I'm a retired old school engine builder and we used it for many years on flat tappet cams and the bottoms of the lifters to get through the break-in process on the dyno with stiff valve springs.

View attachment 1278756

Yes I use slip plate basically the same.

 

[Rusty34]

OK, I will look for pictures to confirm.

 

[djbr459]

So you used it to break-in a cam?

 

[Rusty34]

So you used it to break-in a cam?

Yes, that was the reason we had it in stock. To help break in new cams in new engine builds. I noticed it dried to a hard thin film and thought it might be worth trying for header coatings of which there are no commercial coatings that last very long now.

 

[Rusty34]

Pictures below show a 96 Corvette LT1 exhaust manifolds which were cleaned by glass beading and sprayed with DGF before installing 10 years ago. The second set of pictures is of a 1990 Kawasaki ZX-11 re-installed stock exhaust system after removing them to hand sand the rust off followed by one coat of DGF.

 

[snakeoil24]

Very impressive​

 

[HALIFAXHOPS]

I use it alot in what I do. Really impressed with it. Works great on mower decks and blades nothing sticks at all.

 

[Timmayy]

WOW! I'm going to try this stuff.

 

[snakeoil24]

I will media blast a set of headers and try this I’m also very impressed

 

[Rusty34]

As snakeoil24 said earlier near the top of the thread, all the other currently available coatings or dressings will only last if you don't start and run the engine. DGF spray is the only one I have found that gives you the finish you want, stands up to the heat and actually lasts and lasts.

 

[kiwigtx]

I tried using a POR-15 brush-on exhaust paint - heat resistant....but the rust started up after about 2 years....so when I upgraded my engine a few years later, I tried Pro-Coat.

The Pro-Coat company here media blasts the headers (or any parts) and basically sprays on a powder coat type product, then bakes the parts. Still happy and no blemishes after many miles, and they clean up easily.

 

[snakeoil24]

I tried using a POR-15 brush-on exhaust paint - heat resistant....but the rust started up after about 2 years....so when I upgraded my engine a few years later, I tried Pro-Coat.

The Pro-Coat company here media blasts the headers (or any parts) and basically sprays on a powder coat type product, then bakes the parts. Still happy and no blemishes after many miles, and they clean up easily.



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That looks very good how expensive is it?

 

[mmissile]

These guys have been coating for decades. They do all my stuff, and their header/exhaust coatings have been flawless. They also stand behind their work. Great guys, and racers.....
https://www.qccoatings.com/

 

[snakeoil24]

These guys have been coating for decades. They do all my stuff, and their header/exhaust coatings have been flawless. They also stand behind their work. Great guys, and racers.....
https://www.qccoatings.com/

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What do they charge?