Maxx Mazda

I'm going to get my valve cover powdercoated white, with the letters painted red (like they are now.) I'm wondering, could I get the heat shield done white as well? Would the powdercoating hold up under those temperatures? I know it's baked on to begin with, but will repeated heat cycles weaken it in any way?

stocker

A good powder coat should hold up no problem. Just don't use white as it may yellow over time. I have had engine parts powder coated on my bike and had no problems at all.
Stocker.

Maxx Mazda

Ok, maybe I'll go with red on the heat shield, and white on the valve cover. Will the white naturally yellow, or will it only yellow if its under extreme heat?

neuromancer

Keep in mind that powder coating isn't cheap, and it is rather thick. Make sure that you take it to someone who's done automotive stuff, especially a valve cover. You'd want to make sure it is masked off properly. I would think that for the valve cover and heat shield you'd be looking at around 100-200 dollars.

For something like a valve cover I'd paint it with decent quality engine paint.

Jay

kosmicride

100-200 dollars that is really expensive for US prices
I can get a set of wheels done for cheaper then that 2 VW bus bumpers and various parts.


You can get a higher temp coating like ceramic powder done for the high heat peices.

neuromancer

We are both from Canada...so I was talking about Canadian funds.

Jay

gujustud

I have my engine powdercoated already, (valve cover and heat sheild)

I don't know if I would recommend getting the heat shield done in white. There are 4 bolts that hold it down. The bolt that is near the bottom seems to conduct the MOST heat, and therefore is causing the sheild to turn brown. I've attached a picture below. If you look closely enough you can see its turning brown slightly. Its gotten a little worse since I've taken that picture.



I've asked the guy who did it, and said the heat that is being generated and conducted is just way to hot so its moreso burning the powdercoat which is possible at extreme HIGH heats. The valve cover on the otherhand has no problems at all, neither does the top portion of the heat shield. If anything I should of got it done Black.

Maxx Mazda

Just a thought, but wouldn't a white colored heat shield help radiate the heat away a little better than a red one, since it's a light color? (Back to Jr. High Science.) Or does that not work at all?

kosmicride

Check to see if you can get the heat sheild ceramic coated instead of powder coated with the same color the ceramic coating will withstand the heat better

gujustud

That does when it comes to sunlight, as white reflects heat that is transmitted via light. The heat in this sense however is conducted, and is not being transmitted via light, therefore color wouldn't matter.

Yeah, a friend mentioned that to me. I may look into getting a new heat sheild in the spring, and may get that red or possibly black, which I think will really look the best.

njaremka

darker colors are better at radiating heat than lighter colors are. if you were only concerned with the radiation of the heat absorbed by the heat shield, flat black would be the best.

njaremka

dude, are you going to attack every thing i post from now on?

i was only stating that black objects are better at heat radiation than white ones are, regardless of what the heat shield's main function in life is.

blackp5sdp

i painted mine myself with blue high temp paint, and mine has had no problems... i used paint rated up to 500+ degrees.

see it here....

Maxx Mazda

But your heat shield is discolored. I'm hoping the ceramic coating won't discolor as much as yours did. I want a lasting finish if I'm going to spend the $$$.

mesoh

i don't know where your planning on getting you work done, but i would suggest calgary powder coating... i went in and asked them,and the quoted me 200 for valve cover, heat shield, strut bar and intake with a 3 day work period

good luck