Thread: Wrap it up?

most high temp paint will be burned to a crisp under a wrap, it needs to be a ceramic coating to survive under there.

Mike

Don't bother coating it, just wrap it. I doubt anyone here will ever have a header rot through on them.

You would have to have the header on the car for like 10-15 years for a header to rot out on you man.

Not if it gets wet. Running it while it's wet will cause metal fatigue and accelerate deterioation. So dont get it wet.

The only metal fatigue it will cause is more oxidation. You can run it as wet as you want to, they tend to dry up very very fast.

I dont know what I am talking about. How many wraped headers have you run under wet weather racing conditions?

I don't know what I'm talking about, I mean Material Physics. How many courses have you taken on the subject?

I personally do not have any experience with wrapped mild steel headers in wet racing conditions.

I do have experience with stainless wrapped turbo manifolds in wet conditions. The wrap doesn't stay wet for long.

All I was saying is water doesn't contribute to metal fatigue except that it accelerates oxidation. I wasn't trying to say it wont rust.

Actually lots of courses.
Anyway small eg.
how much would i need? - RX7Club.com

Then you should know that wet wrap will play no role in metal fatigue, aside from oxidation.

I totally agree with you that wrapped mild steel headers will rust. I have never disputed this fact.

There is not much a normal person can do to prevent rusting of mild steel when used on a header. You would have to remove the top layer of material in an atmosphere lacking oxygen and coat it with something that acts as a barrier for oxidizers.

I have seen plenty of coated mild steel tubing start to rust. There is no getting around it.

The best solution for the normal person is high temp paint.

Then you don't have anything preventing you from wrapping.

Duplicolor and Rustoleum both have high temp paints that are good to 2000*F. They are a silica/ceramic formula designed for constant high temp use. I have seen flawless results with those paints.