billdunn wrote:
I recently replaced exhaust on my ez---0-320.
In general is there anything to ceramic coating of exhausts or is it
a waste of time ?
bd
Sounds good to me in theory. Especially on the inside. The big
question is; does it stick in practice?
Paul Lamar
Doug Mueller wrote:
Hi all, please allow me the moment to chime in here. The ceramic
coatings you are refering
to are fabulous. The only problem I have found so far with the use is
that it is imparitive
to prep the material thoroughly before applying the material. I have
experience with these
coatings. The coating can and should be applied inside and out. The idea
behind using the
coatings is to keep the heat out of the metal and flow down the pipe. I
have seen numerous
attempts and people trying to apply the coatings and they come back
blistering and peeling
after several months of use. If you choose this expensive route please
assertain from the
coating company if they use the following process:
1. Bake the parts in an oven at a minimum of 400degrees F for at least
40 minutes before
they apply any coating to your parts! This cooks out all of the oils in
the material.
2. Sand Blast parts inside and out only with 120 grit sand or aluminum
oxide at 80 to
120psi(pounds/square inch). Bead Blast closes the pores of the metal and
retains the
impurities in the metal which is the primary reason for blister or
peeling.
3. Bake again at 400degrees for approximately 30 minutes.
4. Do not handle with bare skin. Oils from your hands get on the parts!
5. Follow normal instructions on paint application from coating labels.
6. Make sure that the parts are Baked at a minimum of 350 degrees for
curing or if you are
ready to install and use them right a way then you can omit this step
and cure them while
you fire them up on your vehicle.
The most important step of all of these is step1-3.
I also would like to add, that coating companies are really easy to
start. There are only 2
coating material suppliers in the country. They are the ones that train
the companies
through paper documents how to apply this stuff. My entire 13B Turbo is
using the most
exotic coatings available. It is in the testing stage right now. I will
keep you informed.
Doug Mueller
RV-6 13BT
N900DM
Henderson,Nevada
"Brian D. Cain" wrote:
I've been thinking about this as well for both exhaust and intake purposes.
One company I've run across (per a VHS video I saw once) is Jet Hot Coating
in CA http://www.jet-hot.com/ -- They may be worth checking out.
B
Doug Mueller wrote:
Hi Brian, I am familiar with Jet Hot. It is not a process that they have that
makes them unique. If you read their ads, they claim they have been doing it the
longest. I agree with them. The original company is in Phoenix,Arizona. Their
materials come from the same supplier in California.
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