Yes, be careful of the foam not being 100% cured. Watch out for the proper density. If you install "green" [uncured] foam it will out gas under the fiberglass and form a gas bubble under the skin. The same goes for uncured resin. Make sure the density is right. The foam can be post cured by heating it to about 140 deg F for 4 to 6 hours. I have tested foam years ago for insulation quality and dimension stability, adhesion and strength for construction building panels and roof insulation. GM installed some green uncured foam on a large plant and 2 acres of foam had to be removed and replaced because the contractor brought cheep foam. The foam went on nice and even but when the hot sun worked on it for a few days, gas bubbles were all over the roof.
Be aware or be square. KRron ----- Original Message ----- From: "Dean Cooper" <dean_coo...@bellsouth.net> To: "KRnet" <kr...@mylist.net> Sent: Thursday, September 09, 2004 4:37 PM Subject: KR> Urethane Foam > Netters, > > I just got off the phone with an old friend of mine (who I haven't talk to > in several years) who is in the insulation business here in Jax. I was > looking for urethane foam in bulk thicknesses. He said he gets it in bun > sizes 41"x 29"x 96" long and can cut it to any specifications I need. His > price is $0.50 (US) per board foot (12x12x1) or $6 per cubic foot. That > appears to be about 40% cheaper than Wicks with no shipping since I would > pick it up. It would also be great to have one soild piece of foam for > the > leading and trailing edges for the wings. > > Is there anything I should be looking for or cautious of when buying this > from a non-aviation parts company? I looked through the archives and > couldn't find anything specific to this question. Thoughts? > > See you in Mt. Vernon! > > Dean Cooper > Jacksonville, FL > Email me at dean_coo...@bellsouth.net > See my KR project at www.geocities.com/djramccoop1/KR2_Home.html > > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > >
