Those of you who've got the high temp ceramic coatings and such on you exhaust housings, twin hot-pipes, etc.

How's it holding up?

Any cracking of the coating with rust shining through? Is it difficult to keep relatively clean within reason?

Are there coating compositions that are better than others?

If you were to consider doing it again, would you do something different?


I'm cyphering a twin set-up for my heap and am seriously considering coating the exhaust manifold, the exhaust housing and hot-pipe. I'm thinking the silver or white color would work best in keeping the gasses hot.

Thanks guys.

 

Good question, I'd like to know myself.

 

I had my exhaust manifold and stack plumbing Jet Hotted over a year ago and it still looks like it did when I got it. I see no signs of wear.

 

I have run these types of coatings on exhaust pipes & silencers on snowmobiles for years. Very tough and has held up well. I would think that it should look like the day it was installed for years to come.

 

If your on a budget Por15 company makes some good High-temp paints , I use there Por-20 thats good for 1400 degrees and going on 3yrs and still has not burned off yet ...still has a nice silver look just like the jet coatings ...I think it's all in the surface prep .

 

Thanks folks.

 

My ceramic coating looked good for a while, but began rusting through. I don't know about the brand or process. My power-coat guy said he could do it so I had him do it. I do not know if it failed due to exceeding the rated temperature or the coating just can't handle the long-term. It doesn't see 1500 degress very often. My powder-coat guy said he'd do it again if I took the manifold off. I doubt I'm going to do that unless I have to pull the twins off for some other reason.

Chris

 

Well it's time for an update so I can add MY review . . .

About 09/03/08, I got all the hot stuff for my twin mess coated with the JetHot ( http://www.jet-hot.com/ ) coating. Specifically the Extreme Sterling coating ( http://www.jet-hot.com/headercoatings.html ). It's supposedly good to up to 1700*F and can drop surface temperatures up to 400*F.


All nice and purdy . ..





Here we are about four months later and . . .








I am NOT a happy camper.

The parts will be returned to JetHot tomorrow (Friday) to be fixed under warranty.

We'll see.

 

Man, sorry to hear that. Hopefully the next set will last. Are they going to coat it with the same stuff, or are you going with something different?

 

Unreal that it didnt even last 4 months!!! Thanks for posting up those pics!

Like the old expression goes... "A picture is word a thousand words"

 

Thats not good at all. I only have my hot pipe coated with ceramic coating. Its not shiny though, its almost an army green colour. I'll be interested to see how it holds up once I get some heat poured though it.

 

Wow! I would not have bet that it was going to do that. And in such a short time. I now have to think that not all coating proccess' are the same. I used HPC (High performance coatings) They have 4 locations around the country. I have seen a number of exhaust pipes and silencers on two strokes and turbo 4 strokes that still look great after years of use. Sorry you had bad luck with yours.

 

I guess it's not a complete review without further updates huh?


Folks, about four months ago, I paid a man cash money to sand-blast the Jet-Hot crap off of my parts. The warranty recoat performed just like the first application and rusted in the same way within three to four months. To add insult to injury, when discussing the warranty recoating, it became very clear that someone with a larger order took precedence and it would be up to a month before I could look for my parts to be completed.

-> I will not spend anymore of my money on the Jet-Hot product.


With that, I've had a local company coat the exterior of the exhaust manifold, both turbine housings as well as the hot-pipe with a ceramic, heat retaining coating. IIRC, it's good for 2000*F. Further, the interior of those same parts was coated with a thermal barrier (same stuff used on piston tops).
With a similar three year warranty, for both interior and exterior coatings, the folks at Carolina Ceramic Coating (Link) cost half what the Jet-Hot exterior coating cost. It took less than a week only because they had to order the exterior coating material.


Here we are over three months into the new product. So far so good.

 

wow that stuff looks really nice ... like the matte finish it gives the parts ...

 

Looks real nice