Good High Temp Spray Paint

[D45]

I have a small Briggs exhaust manifold that I'm going to use a wire wheel and remove the surface rust ......not bad at all, just want it to look better

I was going to use a high temp primer and high temp paint to help prevent the finish

Any suggestions what brands to use? Would spray be better or brush on?

 

[05snopro440]

I have found wood stove paint to be the best on manifolds for my use. You can get it at a wood stove store, usually in either black, grey, or brown and the stuff holds up really well.

 

[K'ledgeBldr]

VBT, Eastwood, POR-15, and even Rustoleum have “high temp”/header paint-
Take your pick!

 

[PCMusicGuy]

VHT paint (brand) is what I would use.

 

[Jim greengo]

If you can bake it on it holds up better,but it does stink while it's baking.

 

[nadogail]

High Temperature Paint for Barbecue Cookers

 

[dfiler2]

I've had good luck with "Stove Bright" brand wood stove paint.

Amazon.com: Stove Bright 6304 Stove Bright High Temperature Flat Black Stove Paint : Tools & Home Improvement

Amazon.com: Stove Bright 6304 Stove Bright High Temperature Flat Black Stove Paint : Tools & Home Improvement

www.amazon.com

 

[Maxcustody]

I bought some of this the other day...................going to use it on my fireplace front louvers.

https://www.lowes.com/pd/Rust-Oleum-High-Heat-Flat-Black-Spray-Paint-Actual-Net-Contents-12-oz/3728731

 

[P0234]

Just make sure you go for the paint meant for exhaust parts, not just the engine paint.

 

[NUTTSGT]

All good recommendations above.

I would spray it on and allow it to dry before you put your fingers on it. If you have a decent heat source like a wood stove or furnace registers you can hang it over. Probably don't want to put it in the house oven. . . . during the winter.

 

[05snopro440]

I've had good luck with "Stove Bright" brand wood stove paint.

Amazon.com: Stove Bright 6304 Stove Bright High Temperature Flat Black Stove Paint : Tools & Home Improvement

Amazon.com: Stove Bright 6304 Stove Bright High Temperature Flat Black Stove Paint : Tools & Home Improvement

www.amazon.com

Yeah, that's the stuff I use. It works much better than automotive exhaust paint for me.

Just make sure you go for the paint meant for exhaust parts, not just the engine paint.

It all seems to burn off the same for me.

 

[engineer2]

Does anybody make good high-temp engine paint in custom colors?

 

[e015475]

I cured some high temp painted parts in my wife's oven. Whatever off-gassed from the cure plated itself on the inside of the double glass on the oven door. I tried to get it off but eventually had to buy another oven to keep my wife happy.

 

[05snopro440]

I cured some high temp painted parts in my wife's oven. Whatever off-gassed from the cure plated itself on the inside of the double glass on the oven door. I tried to get it off but eventually had to buy another oven to keep my wife happy.

Yeah, the oven cure instructions should not be carried out in an oven you prepare food in. This is why you offer to house sit for a friend and use their oven.

 

[sonoronos]

Any suggestions what brands to use? Would spray be better or brush on?

Virtually all high temperature coatings today come in two forms: Polysiloxanes advertised as "ceramic", or actual refractory coatings.

The polysiloxane coatings have significantly lower temperature resistance than refractory coatings, but usually much easier to apply and significantly more flexible. Most VHT style "exhaust" paints and other "ceramic" spray paints are all polysiloxanes, usually with some kind of mica or silica additive.

Refractory coatings can vary from very thin coatings to extraordinarily thick coatings (think enameled cast iron or steel) but are not easy to apply.

There is some research being done on polysilazane coatings which have higher temperature resistance than polysiloxanes, but I don't know if there are any commercial paints using that chemistry (yet).

 

[e015475]

The high-temp paint that cost me an oven was Cerakote, which they recommend be cured at 300F. I painted a tubular exhaust for an O-235 Lycoming with it and had good luck (except for the oven issue) I see from their website that they have a bunch of different colors now.

The last time I painted an engine block, I ordered engine enamel from Bill Hirsch - good stuff

Engine Enamel Paint | High Temp Engine Enamel | Hirsch Auto

 

[ncfireman1918]

I used VHT header paint a while back on a 1965 Nova. The Hedman Hedders were pretty nasty between surface rust, a leaky exhaust gasket and some oil leaks on the engine. Had a buddy blast them at his powercoat shop, we did the 3 stage paint (primer, base, clear) according to the VHT instructions, then he baked them in his powdercoat ovens to cure the paint. I never had an issue, and the headers still looked good the last time that car popped up for sale on either Craigs or FB marketplace.