X-Mozilla-Keys:                                                                                 
jbullens wrote:

Paul tell me about powder coating.  I know very little about it. Where did
you get your engine powder coated?  What does it cost.  Will powder coating
stand up on exhaust?

JB.

Its only good for a several hundred degrees.
I had it done in Northridge CA but there are powder coating
places all over the country. The way it works is the 
paint mist is attracted to the part by electrostatics.
The part is then placed in an oven to bake on the finish.
What you get is a very thick, shiney and tough coat of 
paint as epoxy and other exotic paints can be specified.
It works pretty good on engine blocks but not exhaust.

Some say it is a bad idea to powder coat engine mounts as
it is difficult to see cracks. I did it with the Cessna
mount as there are thousands out there and cracks are not
a problem. On the KIS rotary I will hold off for a few
years to make sure the mount does not develop cracks.

Cessna has a real problem with corrosion as they don't
even zinc cromate aluminum parts to this day despite the
fact that they charge 1/4 million for a new 182. The baffles 
were a real mess as I flew though a lot of rain in the NW and
along the Alaska coast. Inside Alaska and NW Canada
for that matter as well. A one piece fiberglass baffle
would be the hot tip but the FAA would have a coniption 
if they saw it.
 
Paul Lamar
 
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