MAR34807@aol.com wrote:

rotaryeng@earthlink.net writes:

<< > I know we probably already covered this, but
 > what does the forum think about ceramic coated
 > mild steel for exhaust pipe material?  They claim
 > to be able to coat the inside of the pipe. >>

My proof of concept self built up 89 turbo has a custom thick wall steel >2000 degree (jet hot blue) turbo t04 custom welded up manifold coated inside >and out. Really don't know if it will hold up but boy is it heavy. I don't >think it will ever deteriorate!  Jet Hot says the coating will hold up.
Marc

BTW I checked with Tracy Saylor on the wrap he had been using on his
Lyc exhaust pipes and he took it off. It started to crumble up and get
all
over the inside of the cowling. He now only uses it on the 
much lower temp heat muff with red silicone rubber. 
Unfortunately I don't know the brand but it is probably the 
same stuff they sell to racers.
 
Paul Lamar
 
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