Topic: Exhaust Manifold Coating

[Chris]

I coated my 64 1/2 mustang exhaust manifolds with Eastman's factory gray high temp brush on exhaust manifold coating. I found this in a Mustang Monthly article on "how to" restore exhaust manifolds: http://www.mustangmonthly.com/howto/mump_0911_how_to_restore_exhaust_manifold/viewall.html

Well, I had to move my car to the driveway for about a month in January (covered), and my manifolds have rusted over (see attached pic). My question is, what is the best coating for 65 mustang exhaust manifolds, one that won't rust?

[Twilight65]

Chris,
I used the Eastwoods Stainless Steel coating for exhaust (brush on) about 6 years ago and mine still look good. Had to touch up a few spots over the years but has held up well.

dave

[carlite65]

i believe you all are referring to the 'eastwood' product. i too have not had much luck with it even after extensive prep work. i use the por-15 brand and it seems to be a little longer lasting. but remember to be 'concours correct' there would be no coatings, just a little engine color overspray.

[aaatp]

Had mine ceramic coated over a year ago in cast grey, they still look brand new. Most shops that do powder coating can do this process.
I believe I spent between 75 to 100 dollars to have it done.  Shouldn't have to do it again for a long time.

John

[rocket289k]

+1 regarding John's comments.  I too had my manifolds ceramic coated and they look brand new. 

[J_Speegle]

You can purchase ceramic dark gray -  shot it and the heat from the engine (or bake them)  will do the rest. Not cheap and I think the smallest container is a quart. Used the stuff on my Boss exhaust manifolds but the engine is not yet in the car

[rocket289k]

Here's a picture of the dark grey cast like appearence of my ceramic coated manifolds (when brand new).  They don't look any different after two years.

Regards,

Ron

[craig429]

I have used TurboX from this company on the turbo system of my turbo charged 94GT.

http://www.techlinecoatings.com/Exhaust.htm

It holds up very well if the pipes were prep correctly. I did have a problem once with adhesion when I blasted the pipes with some used sand in the sandblaster after a friend borrowed the blaster. He may have blasted some oily parts.

Their Colorgard has a lot of colors.

[J_Speegle]

I have used TurboX from this company on the turbo system of my turbo charged 94GT.

http://www.techlinecoatings.com/Exhaust.htm

Believe (don't have the can handy) that is what I used last time

[app01]

Eastwood has a few different high temp products. I have used this one with good results.

http://www.eastwood.com/ew-factory-gray-hi-temp-coating-11-75oz-aer.html

On another car of mine it has been on for 2 years this spring and still looks just as good. I blasted them with aluminum oxide, blasted with compressed air,  then cleaned them with acetone, dried them off with compressed air and then put 3 light coats. There was also a burn-in process once installed in the car, something like run for  20 minutes, let cool completely.

[jwc66k]

I've used the Eastwood brush-on high-temp paint with good results - bead blast, paint and air dry. If you can handle the odor, bake the manifolds in the oven for an hour at 400F. Powder coating with some 1200F stuff works well on headers, cast manifolds not so much. There was a problem with the high-temp powder coating a few years back so check with the shop first.
Jim

[bryancobb]

It's not the "correct" uncoated color, but all things considered, It's probably the best answer for a driven car.
I sent mine to Jett-Hott, who is suppose to be the best.  They ceramic coated them inside and out with their "cast gray" color.
I have over 6000 miles on them now and they still look brand new.  I haven't figured out if Jett-Hot could include some blue (66)
block color overspray in their ceramic process to make it even better.  My blue that I apply just keeps burning off.

[priceless]

Eastwood has a few different high temp products. I have used this one with good results.

http://www.eastwood.com/ew-factory-gray-hi-temp-coating-11-75oz-aer.html

On another car of mine it has been on for 2 years this spring and still looks just as good. I blasted them with aluminum oxide, blasted with compressed air,  then cleaned them with acetone, dried them off with compressed air and then put 3 light coats. There was also a burn-in process once installed in the car, something like run for  20 minutes, let cool completely.

+1...Used Eastwoods high temp coating,the brush on kind in 1994, held up extremely well for 16 years. I had to have the motor rebuilt in 2010, and redone the exhaust again with the same stuff, have drove the Mach1 over 1000 miles since 2010,,,,NO problems and still looks great.