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Exhaust pipe coating

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bob.kravis(at)gmail.com
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Posted: Tue May 11, 2010 12:16 pm Post subject: Exhaust pipe coating

As my firefly was reviewed and inspected, I asked my mechanic friend if he thought ceramic coating the exhaust system was a good idea.  The engine has less than 2 hrs. on it and no visible rust or soot build up so it seemed like the ideal time to do it.  He suggested that I get feedback from the group before making a decision.  I have seen that nearly all exhaust pipes on 447 and 503 Rotax engines get pretty rusty.  I also noted that replacement parts are very expensive ($500+, no surprise).  At $160 ceramic coating will keep it looking good but will it truly lengthen the life?  Has anybody decided fore or against coating? What was your reasoning? bk 

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Richard Pike

Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee

Posted: Tue May 11, 2010 3:00 pm Post subject: Re: Exhaust pipe coating

Ceramic coating is probably good, haven't tried it, no opinion. I use John Deere high temp exhaust paint, it is good for about three years, then I sand blast the exhaust system and recoat it. So far, so good. 



Oh yeah, a tennis ball crammed into the muffler socket opening is a real snug fit, a bit of duct tape seals it tight, plus more duct tape on the exhaust end. Sand in the muffler interacting with the 582's pulses would not be a good thing.



Richard Pike

MKIII N420P (420ldPoops)

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neilsenrm(at)gmail.com
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Posted: Wed May 12, 2010 9:44 am Post subject: Exhaust pipe coating

Richard

  

 I had my VW exhaust system ceramic coated in a silver color inside and out. It looks good almost like chrome. It was done about five years ago and wasn't showing any rust but five months in Florida and there are now some small rust spots showing. I'm starting a program of coating the exhaust with oil to stop further rusting.

   

 I have been told that ceramic coating aircraft systems isn't recommended because it may hide cracks. I inspect my exhaust very carefully before every flight.

  

 Rick Neilsen

 Redrive VW Powered MKIIIC 

 On Tue, May 11, 2010 at 7:00 PM, Richard Pike <richard(at)bcchapel.org (richard(at)bcchapel.org)> wrote:

 [quote]--> Kolb-List message posted by: "Richard Pike" <richard(at)bcchapel.org (richard(at)bcchapel.org)>

 

Ceramic coating is probably good, haven't tried it, no opinion. I use John Deere high temp exhaust paint, it is good for about three years, then I sand blast the exhaust system and recoat it. So far, so good.



 Oh yeah, a tennis ball crammed into the muffler socket opening is a real snug fit, a bit of duct tape seals it tight, plus more duct tape on the exhaust end. Sand in the muffler interacting with the 582's pulses would not be a good thing.

 

Richard Pike

MKIII N420P (420ldPoops)





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HShack(at)aol.com
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Posted: Wed May 12, 2010 5:51 pm Post subject: Exhaust pipe coating

Mine/s been Jethoted.  10 yrs. and still looks great.

  

  In a message dated 5/11/2010 4:16:22 P.M. Eastern Daylight Time,  bob.kravis(at)gmail.com writes:

  	  Quote: 	
		  At $160    ceramic coating will keep it looking good but will it truly lengthen the life?     Has anybody decided fore or against coating? What was your reasoning?    bk 

	


  [quote][b]

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WhiskeyVictor36(at)aol.co
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Posted: Fri May 14, 2010 4:50 pm Post subject: Exhaust pipe coating

Bob Kravis/all,

  

 I've been flying my Kolb for 15 years, and every year I painted the exhaust  system.  I tried just about every kind of hi-temp paint in a spray can  that I could find locally, including Bar-B-Q flat black.  It would barely  last through the season.  Finally I just couldn't take it any more.   Spent $150, including shipping and tax, to have it finished by  Jet-Hot.  Best thing I did.  It's been two years now and it still  looks like new.

  

  Bill  Varnes

Original Kolb FireStar

Audubon NJ

Do Not  Archive



  

  In a message dated 5/11/2010 4:16:22 P.M. Eastern Daylight Time,  bob.kravis(at)gmail.com writes:

  	  Quote: 	
		  Has    anybody decided fore or against coating? What was your reasoning?     

	


  [quote][b]

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