The foam you have is polyurethane. I am using the same foam in my project. If the foam damage is beyond using epoxy filler; buy some two part foam from ACS or Wicks. Mix and apply liquid foam to repair the surface. If you haven't used this stuff before experiment with a few test pours to get a feel for how is behaves. Note: the longer you mix the foam the more dense the results. Timing is a factor. Chilling the chemicals[i.e. refrigerate] helps control the density also. After the foam cures; cut and sand the surface. KRron
----- Original Message ----- From: <[email protected]> To: "KRnet" <[email protected]> Sent: Wednesday, June 16, 2004 11:11 AM Subject: Re: KR> Foam type > While on subject of foam, maybe someone would consider my question. I'm a > new KR2 owner/builder having bought a KR2 about 80% finished, i.e. all of > the fiberglass work is done except some miscellaneous. This kit was > started in 1974 or so and the foam at the end of the stub wings is pretty > "boogered up" and, in a few areas, sort of crumbling. The fiberglass/resin > job is really strong with a good bond. I don't know know what type of > foam was used, but the former builder did say that that this foam can not > be cut with a hot wire device due to the toxic gas that it would emit. As > far as the ageing and crumbly state of the foam, do I have a problem? > > Thanks, > Jim Foster > Katy,TX > > > > > > Gene said: > > "One thing to consider about foam is Styrofoam will dissolve in gasoline" > > > > While this is true, I would say that if you had areas where fuel would be > > coming into contact with the foam you have bigger problems. Having said > > that > > the polyurethane foams are great stuff, they can have a much higher > > compression resistance which lessens the likelyhood of pressure damage, > > for > > instance if someone steps on an unsupported wing area. > > Cheers. > > Peter Bancks. > > [email protected] > > _______________________________________ > > to UNsubscribe from KRnet, send a message to [email protected] > > please see other KRnet info at http://www.krnet.org/info.html > > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html > >
