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Date: Mon, 24 Jul 2006 19:49:03 -0600
From: Bob White <rlwhite@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: More cooling Tests
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On Mon, 24 Jul 2006 21:18:16 -0400
Chad Robinson <crj@lucubration.com> wrote:

> Bulent Aliev wrote:
> > Hi Bob, the stuff you are using I think it is Mylar coated fiberglass. 
> > If it is close to the exhaust pipes, it may melt the coating? Friend of 
> > mine bought some from Spruce. I put the propane torch on it and the 
> > coating melted instantly.
> 
> You can tell Mylar film because even a match will do that. It's just 
> poly film with a thin (basically painted or sprayed on) coating of 
> aluminum. 99% plastic. Worthless for insulation near any form of heat 
> source, and almost always labeled as "flammable".
> 
> But, Buly, a propane torch is over 3000degF. Way above the 1000F Bob 
> quoted for his material. Not a very fair test, is it? =)
> 
> 

I have one smaller piece safety wired directly to the down tube.  It
got hot enough to stink!  It's purpose is to shield the heat source from
radiating directly into my left radiator and also protects the motor
mount tube that is very close.  I didn't take it off to see if it had
melted the surface but decided to move it off the exhaust system before
the next test.

Bob W.

-- 
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