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09-07-2007, 10:53 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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intumescent coatings.
I was watching a program on TV last night, about products in everyday life that are spin offs from NASA.
Thanks Paul!! And all the other aerospace folks out there.
One of these was intumescent coatings. Developed for space capsule heat shield usage-----ablative is the term, IIRC.
Made me wonder if this could be used on our firewalls, and what the pros/cons of such would be??
Three big questions I have are exposure to oil, and long term exposure to the temps under the cowling, and long term adhesion to a thin/flexible sheet of stainless steel.
Internet searching proved to be a big waste of time, so it is time to go to the VAF database.
Any of you with knowledge/experience of these materials, please comment.
Thanks in advance.
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010 
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
Last edited by Mike S : 09-07-2007 at 10:54 AM.
Reason: more info
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09-07-2007, 11:07 AM
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Join Date: Dec 2005
Location: Oliver, B.C. Canada (Okanagan valley)
Posts: 786
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intumescent coatings
In my industry (buiding/construction material), intumescent coatings are applied to areas where, in the event of fire...temp starting at (IIRC) 750*F the coating will "bubble and foam" forming air filled "pillows of protection" to protect the substrate. How these coating are effected by oil and oil vapour is something for the techy's.
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Lorne
RV 7a tip-up
Pre-cover MD-RA Inspected.
Canopy completed. Bonded with Sika-Flex.
Up on her mains, Firewall Fwd and wiring on going.
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09-07-2007, 06:48 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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Lorne, thanks for the reply, hopefully someone out there in VAF land will be able to answer these questions.
Considering the potential disaster that an in flight engine fire poses, this stuff might just be a lifesaver.
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Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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09-07-2007, 08:29 PM
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Join Date: Dec 2005
Location: Mahomet, Illinois
Posts: 2,195
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My understanding is the paint sold below does exactly that .. essentially puff up and provide an insulation layer. I'm seriously considering it for the forward side of my firewall.
\
http://www.aircraftextras.com/Contego.htm
Rupester
Mahomet, IL
RV-9A QB fuse |
09-08-2007, 05:54 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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Thanks
Rupester, thanks for the link.
This sounds exactly like what I had in mind.
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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04-09-2008, 07:32 PM
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Join Date: Jun 2007
Location: Rhode Island
Posts: 937
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More Intumescent Links
This is a 7 month old link, but I think I just saw the same show rebroadcast. Thought the same thing Mike did. Maybe there are more manufacturers now, but I found this interesting data on intumescent paint (swells up to an insulative foam) products:
http://www.fireretardantsinc.com/20_...n_barrier.html
http://www.fireretardantsinc.com/20_...20_Product.pdf
http://www.albi.com/clad800.html
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Highest Regards,
Noah F, RV-7A
All men dream, but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men? for they may act their dream with open eyes, to make it possible. -T.E. Lawrence
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04-09-2008, 09:15 PM
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Join Date: Oct 2005
Location: 08A
Posts: 9,477
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http://www.albi.com/pdfs/800/800_faqs.pdf
See pages 2 and 3, question 2 and 3. I have no idea why.
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Dan Horton
RV-8 SS
Barrett IO-390
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04-09-2008, 09:56 PM
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Join Date: Jan 2008
Location: Lynn Haven, FL
Posts: 18
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OK Mike, you used "intumescent" and "ablative" in the same post. NOW I have to go get a dictionary! I've learned a TON on this web site about RVs, but this is one post I have got to watch.
Dave
RV-9a wannabe
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