Exhaust coating inside

[Randy Folsom]

I opted for a polished stainless steel bundle of snakes from RCR. Since they are polished, I would like coat just the inside of the tubes to manage heat. Considering using Eastwood’s internal exhaust coating.

Eastwood High Temp Internal Exhaust Coating with 24in Extension Nozzle

Eastwood High Temp Internal Exhaust Coating reduces under hood temperatures and extends the life of exhaust system components Thermal coating withstands up to 1800 degrees F2 foot long, 360-degree aerosol extension nozzle for easy applicationWorks with bo

www.eastwood.com

Also wondering if Cerakote or any other coating can be applied by simply pouring into the tubes and swirling it around.

Last alternative is to send the tubes to Jet Hot for internal coating only.

 

[Paul Proefrock]

Randy
I used ZyBar to coat my last set of Cobra headers, inside and out. These are links to the site:

Zybar​

Instructions​

The instructions outline the procedure for coating the insides. Very pleased with the product, however, it is not cheap. They also have a service that they will do the coating for you.


Paul

 

[Randy Folsom]

Randy
I used ZyBar to coat my last set of Cobra headers, inside and out. These are links to the site:

Zybar​

Instructions​

The instructions outline the procedure for coating the insides. Very pleased with the product, however, it is not cheap. They also have a service that they will do the coating for you.


Paul

Paul, thx much for sharing your experience. Does it work as well as you hoped? I am concerned about not being able to media blast the inside of the tubes. Did you find a way to do that? Did you use the cotton ball or pour & swirl method for the insides?

I will probably test it on my Cobra’s headers before committing to the bundle of snakes. My Cobra’s headers have only been run on a dyno, so not much build up to clean and the pipes are relatively short.

Cheers, Randy

 

[Paul Proefrock]

Paul, thx much for sharing your experience. Does it work as well as you hoped? I am concerned about not being able to media blast the inside of the tubes. Did you find a way to do that? Did you use the cotton ball or pour & swirl method for the insides?

I will probably test it on my Cobra’s headers before committing to the bundle of snakes. My Cobra’s headers have only been run on a dyno, so not much build up to clean and the pipes are relatively short.

Cheers, Randy

Worked very well. I used the cotton ball method to put it in. I made an extension for a sandblaster to do the tubes. The longest one was 28" so I was able to get in from both ends. They make a tool that you can drag through to blast and I also see some comments about pulling a wire brush through to get the surface texture needed.

The hardest thing is having access to an oven that you can cook them for a couple hours at 500 degrees. I have access to a large powder coat oven so it wasn't a big deal.

Paul

 

[Randy Folsom]

Worked very well. I used the cotton ball method to put it in. I made an extension for a sandblaster to do the tubes. The longest one was 28" so I was able to get in from both ends. They make a tool that you can drag through to blast and I also see some comments about pulling a wire brush through to get the surface texture needed.

The hardest thing is having access to an oven that you can cook them for a couple hours at 500 degrees. I have access to a large powder coat oven so it wasn't a big deal.

Paul

Thx again for the guidance. I might take mine to a local Powder Coater for prep. Even at $20 an oz, the Zybar will still cost than sending them to Jet Hot.

 

[bryanf]

I've had great results in the past from Swain Tech thermal barrier coatings.

 

[Randy Folsom]

I've had great results in the past from Swain Tech thermal barrier coatings.

Bryan, thx for sharing your experience. I just googled Swain Tech and one of the top hits was Jet Hot’s FAQ acknowledging that Swain Tech is very good and claiming that their most expensive coating (2500 series) is comparable Swain Techs. That is a very good endorsement from a competitor Swain Tech prices are very competitive as well. Cheers, Randy

 

[Brian Kissel]

Last I knew, Swain only did exhaust coatings in white. That was some time ago, but definitely worth inquiring about.

Regards Brian

 

[Randy Folsom]

Last I knew, Swain only did exhaust coatings in white. That was some time ago, but definitely worth inquiring about.

Regards Brian

Brian, I checked and you are correct, but since I am only coating the inside of the tubes, color is not a concern. Cheers, Randy