Hey guys,

So I'm going to be spraying my header black.

The spray can will be black, it has self priming and is an Engine Enamel spray can which is heat resistant.

I was wondering, since the headers reache a high temperature, do you think the paint would resist the heat?

I've only used this on my valve cover and is perfectly fine.

Anything I should know?

 

no it wont take the heat.

 

It will peel the first time that you run in a highway. Probably earlier!

Too hot for enamel!

 

Thanks, is there anything that can take the heat which is black?

 

There are engine enamels which can take this kind of heat - though the type eludes my mind at the moment.

Edit: What do you think they used to paint the old big bore's up with in the earlier days? We've done some of this painting at the shop, but certainly not enough that I can remember it. Sorry for not being able to give you specifics.

 

Its okay man, as long as I know theres something, thats good lol.

I only need to wait for an answer now. I'll probably see how much degrees it can take..

 

Yeah, there are a few differnt temp ratings. I'd suggest getting the highest rated coating you can nab. Don't expect an insane amount of color choices (last I checked, just the basic solids). I'd also suggest a color that doesn't look bad faded (ie: blue or black).

 

Yeah I'm actually after black.

I'll goto the shop to check out some..

 

http://www.raceshopper.com/brake_paint.shtml


http://www.hirschauto.com/acb/showde..._ID=12&CATID=1


Looks like exhaust paint needs to be cured slowly over several hours in an oven. That second link says the paint can be cured on the car?! I wonder how long you'd have to run the engine for though?


Curing:
VHT Flameproof Coatings will dry in 15 to 30 minutes. Baking ( a Bar-B-Que works great) at 250°F for 30 minutes, then 30 minutes at 400°F, then 30 minutes at 650°F, improves finish and provides a durable surface for solvent resistance. The inherent heat of operation as encountered in exhaust manifolds, boilers, heaters, ovens, etc. may also accomplish curing. Run heat source until hot then cool for 30 minutes, run heat source again until hot and allow to cool for 30 minutes. ALL CURING MUST BE DONE SLOWLY. Until coating is cured finish is not solvent resistant. It is recommended that each individual coat must be cured completely before applying the next layer of coverage.

 

Those products aren't in Aussie Retro, need to find ones in Australia. Thanks for the information anyway.

I was wondering, if the headers are sprayed black, would that then increase the heat of the air flowing through the exhaust because of the colour black?

 

i dont think color inside and engine compartment matters.... yet as said.. it wont last....

 

Get it ceramic coated. You have finish options with ceramic as well, and it will drop your under hood temps.

 

Plastikate makes a high temp paint. I notice a lot of hot rod guys using the stuff...

I personally would have send it to Jet-Hot and have the coat it with their Sterling finish. Ceramic is good, but not better than Jet-Hot IMO.

 

May sound like a newbie question, but does ceramic coating come in black? I would like to reduce the heat if possible.

 

Anything that doesn't melt away creates a heat barrier, the properties of that barrier vary between materials. Painting may only give you a slight increase when compared with ceramic coating, but how much do you want to spend?