You should be advised that once the exhaust is coated it cannot
be repaired by welding if any cracks develop later.
Placing an insulating ceramic coating on the outside of the
exhaust plumbing will make the metal run hotter. Is that your
goal?
The exhaust on my LNC2 was coated on the outside for appearance and coated
on the inside for heat dissipation. I have had two cracks welded and
a ball joint welded in line with no problems concerning the welding repair with
the exterior coatings in place. (the exterior coating has to be ground
away in the area to be welded)
Gary Edwards
LNC2 N21SN
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