Header Coating Peeling

That looks pretty nasty.....will need to be redone.
What temperature range coating did you use?

 

I believe Fabspeed used (not sure who their current coater is though) Jet-Hot High Performance coatings which offer high temp coatings with ratings of 1300, 2000 or 2500 degrees f.
From the finish on your headers it appears you may have the 1300 degree coating.

 

I tried to warn people about this years ago....I am more concerned with the internal coating that has come off and getting caught by the reversion wave and winding up back in the cylinder...

 

Or the cats?

 

I don't think this is a problem with the use of high temp coatings....rather the wrong coating was applied for this application.
When I coated my headers 6 years ago I also specified the silver 1300 degree coating because it looked sweet with the silver polished finish....however the coater called me and advised against this and recommended I use the 2000 -2500 degree coating instead.
That finish is thick/rough but more durable for the heat in our engine compartments.

 

Is this the ceramic coating or something else?

 

Very common with JetHot, as well as similar coatings. In fact, I have an unused header that was coated by JetHot years ago that actually started rusting just sitting on a shelf in my shop. I have never seen the stuff hold up in the long term, even on race cars that live indoors and are seldom driven.

If you want something better check out Swain Tech, but their exhaust coating is only available in white so you'll probably want to paint it.

 

I believe ceramic coating.
Heres the link:http://r.search.yahoo.com/_ylt=AwrBT_vacH9ViJ0ApylXNyoA;_ylu=X3oDMTByOHZyb21tBGNvbG8DYmYxBHBvcwMxBHZ0aWQDBHNlYwNzcg--/RV=2/RE=1434444123/RO=10/RU=http%3a%2f%2fwww.jet-hot.com%2fcoatings%2f/RK=0/RS=SYefqyKZTwqePfHiFaqc6ph.7aE-

To the O.P.: they have a lifetime warranty on their coatings so if Jet-Hot did the original coating they will redo it.

 

Wow thats pretty crazy....must be the preparation as ceramic coating rarely has issues.
I have heard good stuff about Swain Tech though.

 

WOW blast from the past for me. Swain is the best PERIOD
They did all the internals of our last race motor way back with friction modifiers.

 

I've had at least two brand new headers done by JetHot themselves and I know of a number of racers that have used them, as well as other, similar coatings. I've never seen the silver stuff last for more than a few years. Just my own experiences. YMMV, of course.

 

I used jet hot 2000 degree (black) on my twin turbo manifolds for my Rx7. The coating didnt last very long. Although they will probably redo out of warranty, i would rather try Swain Techs white lightening.

 

I agree with you on the 1300 degree silver coating....looks great but doesn't last.
My headers have now gone 6 years with the 2000 degree black coating and except for a few minor chips on the bottom after the merge collector (see the grey base primer)....have had no issues. I think that occurred due to surface preparation (greasy finger prints?)....I just resprayed with 1200 degree VHT ceramic header paint and problem gone.

 

Actually I've seen a 355 with white headers.....contrasted with the red cam covers looks really sweet.

 

I had some headers Jet Hot coated about 20 years ago (silver) and they still look great, a little duller though. Not a Ferrari but a 650 hp big block Chevy. Appears to be a coating application issue to me.

 

Bruce, I agree with you. If the coating is peeling on the outside, who knows what is happening inside the tubes. The peeled coating makes its way back into the cylinders. I know others have done this and supposedly haven't had any problems, but I felt it was risky. Everything is good until it isn't.

 

Good to know. I've never tried the black coating but it sounds like it is more durable than the silver. Which is great for me, since I'd prefer black anyway.

 

Ive used the black coating. Same peeling issue. It could be a prep issue

 

I have seen Henry drive and i think its the driver LOL!

 

I used Jet hot (black) on a set of turbo manifolds for a C6Z 8 years ago. A little duller but no peeling/chipping even today, making 1350 to the tire.

The silver coating always dulls but I wouldn't say it's very common to fail in the way pictured.

 

Exactly. Coated a bunch of stuff ... never had any peeling issues.

 

Can you see if the coating pulled a layer of the steel off with it?

 

I never believed in these coatings....I would rather put Capristo blankets on them and move on. You will have better heat protection of the engine components that way. (engine mounts, connector boots, anything rubber or plastic)

 

Old school header wrap has been fine for engine bay heat on my uncoated Fabspeeds for 7 years and 25k miles. Might add
blankets at some point just for a little extra.
I never really liked the interior coating idea.