[collectibles] Porcelain or ceramic exhaust manifold

After extensive research involving the coating of Jaguar manifolds
I have decided to try a double coated ceramic coating, coated both
inside and outside of the manifold. My last job lasted 2 hours (75
miles) - It was a ceramic coating.

I just restored my 61 E-type to what is mid to upper 90’s level
restoration. On the other hand, I do plan to drive this one on nice
days so I want a manifold that will look nice for a long time.
After talking to MANY folks I’ve decided that Porcelain, regardless
of who does it, will crack sooner or later. I’ve decided to go
with ceramic again; this time through Prairie Porcelain out of MN.
They do both porcelain and ceramic, or a combination of both. They
seem to be the only ones that I have found that will do both the
inside and the outside of the manifold, and offer you a GLOSS BLACK
ceramic finish. Ceramic is very thin so garbage in is garbage
out. You need to send them a nicely finished manifold (I ground
down the seams and polished and sand blasted my manifold so that it
looks nice). You want to remove as little material as possible so
that the manifold isn’t too thin and develops a hot spot, thus
burns off the finish. They have not seen my manifold yet, but I
plan to send it to them soon. I will post feedback in regard to my
success sometime next summer after I have had an opportunity to put
some milage on the car. If I were to go with a porcelain coating I
would consider them as well, or possibly consider Independence, but
I believe either one will eventually crack.

I spoke to numerous coating companies, JCNA judges, and Jaguar
owners; following is my input:

  1. West Coast Porcelain- CA - will tell you that porcelain won’t
    last and that their coatings are for show/non-driving vehicles
    only. I respect their honesty.
  2. Independence Porcelain Enamel- Independence PA- says that they
    are not aware of any problems with their coatings, but I talked to
    folks that did experience cracking within the first couple hundred
    miles.
  3. Prairie Porcelain - Fairabault MN - Was up front and told me
    that no porcelain coatings will last forever, some will crack
    immediately, and others will last longer depending on the condition
    of the car (running lean or rich) and/or the manifold cast iron
    (thin, rust, etc.).
  4. Jet Hot - Is the current leader in ceramic coatings for
    manifolds. I’ve heard good and bad things about them. I believe
    that most likely the folks that have had problems may not have
    prepared their manifold correctly before sending it to them, but I
    don’t know this for a fact.–
    Gberghoff
    –Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

Thanks
san-----Original Message-----
From: owner-collectibles@jag-lovers.org
[mailto:owner-collectibles@jag-lovers.org] On Behalf Of Gberghoff
Sent: December 4, 2007 1:41 PM
To: collectibles@jag-lovers.org
Subject: [collectibles] Porcelain or ceramic exhaust manifold

After extensive research involving the coating of Jaguar manifolds
I have decided to try a double coated ceramic coating, coated both
inside and outside of the manifold. My last job lasted 2 hours (75
miles) - It was a ceramic coating.

I just restored my 61 E-type to what is mid to upper 90’s level
restoration. On the other hand, I do plan to drive this one on nice
days so I want a manifold that will look nice for a long time.
After talking to MANY folks I’ve decided that Porcelain, regardless
of who does it, will crack sooner or later. I’ve decided to go
with ceramic again; this time through Prairie Porcelain out of MN.
They do both porcelain and ceramic, or a combination of both. They
seem to be the only ones that I have found that will do both the
inside and the outside of the manifold, and offer you a GLOSS BLACK
ceramic finish. Ceramic is very thin so garbage in is garbage
out. You need to send them a nicely finished manifold (I ground
down the seams and polished and sand blasted my manifold so that it
looks nice). You want to remove as little material as possible so
that the manifold isn’t too thin and develops a hot spot, thus
burns off the finish. They have not seen my manifold yet, but I
plan to send it to them soon. I will post feedback in regard to my
success sometime next summer after I have had an opportunity to put
some milage on the car. If I were to go with a porcelain coating I
would consider them as well, or possibly consider Independence, but
I believe either one will eventually crack.

I spoke to numerous coating companies, JCNA judges, and Jaguar
owners; following is my input:

  1. West Coast Porcelain- CA - will tell you that porcelain won’t
    last and that their coatings are for show/non-driving vehicles
    only. I respect their honesty.
  2. Independence Porcelain Enamel- Independence PA- says that they
    are not aware of any problems with their coatings, but I talked to
    folks that did experience cracking within the first couple hundred
    miles.
  3. Prairie Porcelain - Fairabault MN - Was up front and told me
    that no porcelain coatings will last forever, some will crack
    immediately, and others will last longer depending on the condition
    of the car (running lean or rich) and/or the manifold cast iron
    (thin, rust, etc.).
  4. Jet Hot - Is the current leader in ceramic coatings for
    manifolds. I’ve heard good and bad things about them. I believe
    that most likely the folks that have had problems may not have
    prepared their manifold correctly before sending it to them, but I
    don’t know this for a fact.


Gberghoff
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–