REFLECTOR: High-temp foam insulation

[Jim Sower]

Is high temp all that critical on such a small opening?  It seems that 
an engine compartment fire big enough to melt most any foam at all in 
that obscure corner of the firewall would trivialize the fact that your 
"Great Stuff" blocking the chases has melted.
What's the context we're talking about ... Jim S.


KeithHallsten wrote:

>Melamine foam pipe insulation looks even better - good to 350 degrees F
>continuous.  See http://www.techlite.net/plain_79.htm
>
>
>----- Original Message ----- 
>From: "KeithHallsten" <KeithHallsten at quiknet.com>
>To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>Sent: Saturday, November 06, 2004 6:58 AM
>Subject: REFLECTOR: High-temp foam insulation
>
>
>  
>
>>Of course the problem would be finding a practical source for a small
>>quantity of foam-in-place polyisocyanurate.  I found a few companies that
>>will machine whatever shapes you may want from such foam block, but no
>>source for making your own!
>>
>>One thing I did notice is that the Elliot Company in Indianapolis makes
>>polyisocyanurate pipe insulation with a continuous operating temperature
>>    
>>
>of
>  
>
>>up to 300 degrees F.  (see http://www.elliottfoam.com/pipe.html )  I've
>>    
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>been
>  
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>>looking for some appropriate insulation for the line to the nose oil
>>    
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>cooler
>  
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>>so that I can run it up the keel (fixed-gear, so there's room) without
>>cooking everything in the cabin on hot summer days.  This looks like it
>>might do it.  Has anyone run across anything better?
>>
>>Keith Hallsten
>>
>>
>>----- Original Message ----- 
>>From: "Richard Riley" <richard at riley.net>
>>To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>>Sent: Saturday, November 06, 2004 10:03 AM
>>Subject: RE: REFLECTOR: Interesting Gotcha this morning
>>
>>
>>    
>>
>>>Foam polyisocyanurate would do
>>>it.
>>>      
>>>
>http://www.findarticles.com/p/articles/mi_m0UBT/is_39_13/ai_55909848
>  
>
>>>At 08:47 AM 11/6/04, you wrote:
>>>      
>>>
>>>>That's a good idea.  Do they make a non-flammable version of spray
>>>>expand-a-foam?  Extra firewall protection.
>>>>Is the spray foam even flammable?  I'd imagine yes.
>>>>        
>>>>