We have used aluminum tape on the engine shroud for the schools UAV to reduce the radiation emits. The shroud gets very hot and we have had no problems with the adhesive melting. Aluminum tape is designed to be used on heating ducts and othere high temp applications (I do not know its max temp).

 

 

 

 

http://www.rose-hulman.edu/arc/

 

 

Alex Madsen

 

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bulent Aliev
Sent: Sunday, May 23, 2004 7:12 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Two problems solved, 2 more pop up...

 

On 5/23/04 7:54 PM, "Ed Anderson" <eanderson@carolina.rr.com> wrote:

 

----- Original Message -----
 
From:  Bulent  Aliev <mailto:atlasyts@bellsouth.net>  
 
To: Rotary motors in aircraft <mailto:flyrotary@lancaironline.net>  
 
Sent: Sunday, May 23, 2004 2:41 PM
 
Subject: [FlyRotary] Re: Two problems  solved, 2 more pop up...
 

On 5/23/04  11:49 AM, "Alex Madsen" <madsena@rose-hulman.edu>  wrote:

 

I would try aluminum tape for radiation shedding of the turbo  after shutdown. Just apply it to the cowl wherever you want some shielding.   It is sold in almost any hardware, and is designed for high temps.  
 

Aluminum tape alone will  not do it. You should get Fiberfax from Spruce and glue the FF to the cowling  than the Aluminum (or better stainless) to the Fiberfax. The Stainless will  reflect the heat and the FF will insulate the skin from the  heat.
Bulent

While Fiberfax  sounds like an ideal material for such a problem, let me caution you about  it.  I also attempted to use Fiberfax to insulate my lower cowl from the  header pipes.  I soon removed it because it was fragile and tore easily,  but more importantly it absorbed oil like a sponge.  I could just  see it sitting there oil soaked waiting for the right combustion event.   

 
 
I removed it and found that aluminum foil worked just  fine and was much cheaper and less fire prone.  As long as you are not  applying the aluminum foil to the headers or turbo pipes them selves, it will  work nicely.  Now, if you are going to wrap it around a turbo or header  then I agree it will not stand up to the temp/heat.   

 
 
But, unless you are going to forever have an oil free  engine compartment I caution against fiberfax unless you somehow incase it so  oil drippings will not be absorbed by it.

 
 
FWIW

 
 
Ed Anderson

 

Having self adhesive aluminum foil close to the red hot turbo it will melt the adhesive. Also if you are getting oil in this area, you are in trouble already. I agree fiberfax is brittle, but they also have other insulators that will work.
Bulent