[s-cars] To ceramic coat or not

Fri Jan 6 17:41:00 EST 2006

I also was in contact with Jet hot and they gave me the same reply. I then email swaintech and they pretty much said the same thing. If its not a turbo they will coat the inside, if it is a turbo they will not. Below is the email I sent them as well as their reply. 

Elijah

Hello Elijah,

If it is not a turbo header, we can coat inside as deep as possible but you would want to be certain to ask for that when you send the part in or it may not happen.  Our tech's usually look at the part to determine if there is room for a coating or not.  If there is doubt that the coating could effect the fit or seal of the part, we tend to be conservative and mask off the mounting flanges which would also mask off the inside of the pipe.

There are many companies that apply the Jet Hot coatings which are nice looking paint based coatings.  They do claim to offer performance gains and they can helps some, but they are so thin and there is so little ceramic in those materials that it really will not insulate much.  We could apply that type of material, but it really is not worth it so we do not get involved with those thin paint based materials.  If you put a high temp paint in there, you would not be too far from what the Jet Hot type of coating would be.

Sincerely,
Richard
Swain Tech Coatings

From: elijahallen92 at aol.com [mailto:elijahallen92 at aol.com] 
Sent: Friday, January 06, 2006 9:56 AM
To: office at swaintech.com
Subject: coating for header

Hi, I have used your coatings in the past and was very happy with them. I have a header and DP that I need coated on the outside and wondered if you offer any coatings for the inside? Please let me know, I would like a ceramic type coating for the inside that is very durable but smooth and will hold up to race car temps. Thanks for any info.

Elijah

-----Original Message-----
From: Brian DeWyngaert Jr <brian.dewyngaert.jr at gmail.com>
To: s-car-list at audifans.com
Sent: Fri, 6 Jan 2006 15:49:45 -0500
Subject: Re: [s-cars] To ceramic coat or not

Hey Guys,
  I just gave Jet-HOT a call, to see what a downpipe coating would
cost, if they would do inside and out and what product they suggested.
 I was advised that with a turbo application they strongly suggest
that the inside not be coated.  They could not guaruntee that the
applied material would not flake off and damage the turbo.
As far as suggested product for best insulation they sugested a white
cream Z coating.  This coating is applied at 2mils.  The price was 35$
per foot, so roughly 140$ total for a downpipe the process would take
about 7 days to complete.

I was also advised to stay away from the sterling coating in parts
that would handle exhaust gases, as the high temperatures from a turbo
could damage the coating.
Has any body done any pyro testing on the various engine, exhaust
parts, to see after some seriously hard runs what the temperatures are
at?  I think it would be kinda nifty, a little ricy, but still nifty
to some items in the engine bay in a sterling like finish. Thoughts?

Cheers,
Brian
94 S4 NoVa
On 1/6/06, Mark Strangways <Strangconst at rogers.com> wrote:
> I can understand where you want turbulence or anti-reversion tactics at /
> near the cylinder head, but I wonder what can be gained from sticky surfaces
> in the exhaust system past the point where anti-reversion makes a positive
> effect.
>
> I may be wrong, but that's how I would expect things to work
> ----- Original Message -----
> From: <manuelsanchez at starpower.net>
> To: <djdawson2 at aol.com>
> Cc: <s-car-list at audifans.com>
> Sent: Friday, January 06, 2006 1:01 PM
> Subject: Re: [s-cars] To ceramic coat or not
>
>
> > Dave,
> >
> > thanks. that's what I love about the list, often makes me
> > think counter to what I had originally thought. The turbulence
> > helping flow as opposed to hindering is a case in point. Seems
> > to make sense when I think about it in terms of what I had
> > heard about porting heads.
> >
> > Thanks again for the info on your own ceramic coating
> > experience, it reinforces an opinion I'm forming. I bought a
> > ceramic coated header for my truck (got tired of the warping
> > EM and broken studs so I thought what the hell). It came
> > coated from the vendor, and I'm not sure who did the coating,
> > but after a few months large sections on the cross over pipe
> > flaked off.  I'm glad (but really sorry) it wasn't just me.
> >
> > -manny
> >
> > ---- Original message ----
> >>Date: Fri, 06 Jan 2006 11:13:13 -0500
> >>From: djdawson2 at aol.com
> >>Subject: Re: [s-cars] To ceramic coat or not
> >>To: manuelsanchez at starpower.net, s-car-list at audifans.com
> >>
> >>   I'll give you my 2 cents worth.
> >>
> >>   I had my header Swain coated 1 year and 2 months
> >>   ago...and 36k miles ago... and only on the
> >>   exterior.  It has held up fairly well, but
> >>   significant sections have become bare.  With that
> >>   alone in mind, I wouldn't consider coating the
> >>   inside of a header or downpipe I owned.  If it
> >>   doesn't last on the outside, it can't have a prayer
> >>   on the inside.
> >>
> >>   As far as flow is concerned... there exists a good
> >>   arguement in support of "surface turbulence"
> >>   improving flow rather than hindering it.  However,
> >>   if the DP is 3" (or more), I doubt you could ever
> >>   tell the difference in power output.
> >>
> >>   Dave
> >>
> >>   -----Original Message-----
> >>   From: manuelsanchez at starpower.net
> >>   To: s-car-list at audifans.com
> >>   Sent: Fri, 6 Jan 2006 08:22:04 -0500
> >>   Subject: [s-cars] To ceramic coat or not
> >>
> >> S-heads,
> >>
> >> Thanks for the input so far.
> >>
> >> I thought I had recently seem some opinions about coating the
> >> inside of components;
> >>
> >> 1. There was a concern that as the ceramic coating flaked off
> >> or deteriorated, that the bits would lodge in downstream
> >> components, such as the kitties.  Do these coatings
> >> deteriorate quickly, slowly?  How do they deteriorate? Is this
> >> a valid concern?
> >>
> >> 2. Interior coating is not "smooth" as the uncoated metal,
> >> presumably this would disturb the flow.  Do the benefits of
> >> keeping the heat from the metal outweigh the diturbed gas-flow?
> >>
> >> Look forward to your input.
> >>
> >> -manny
> >> 95.5 UrS6 Avant
> >> _______________________________________________
> >> S-CAR-List mailing list
> >> S-CAR-List at audifans.com
> >> http://www.audifans.com/mailman/listinfo/s-car-list
> > _______________________________________________
> > S-CAR-List mailing list
> > S-CAR-List at audifans.com
> > http://www.audifans.com/mailman/listinfo/s-car-list
> >
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
>
_______________________________________________
S-CAR-List mailing list
S-CAR-List at audifans.com
http://www.audifans.com/mailman/listinfo/s-car-list