I recently purchased a KR2. The plane has some areas where the paint appears to "bubble". Is there an accepted method of removing/repairing these areas?
Thanks Bill Hawkins 2646D -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of allen_h_b...@notes.tcs.treas.gov Sent: Friday, August 11, 2006 6:33 AM To: kr...@mylist.net Subject: KR> Expanded polystyrene foam Thanks for the responses... its good to hear of Danny Livingstone's EPS aircraft. Many of the responses related to cost or the sanding ability of this material. You are correct, EPS is very difficult to sand to shape due to it's make-up. I wouldn't think of trying to sand it to shape, however my interest in it is for it's ability to be hot wired to final shape (without sanding), and the weight of the finished product. It's cost is also not a major concern. The fact it is a closed cell foam rather than an open cell, does not soak-up epoxy like a sponge and that it is half the density of polyurethane was my concern. I looked at Danny's web site it doesn't appear that his is flying yet. I had not even considered doing my wings in EPS. For those of you that have not worked with this stuff. A hot wire cut using good templates at the right temperature leaves a surface nearly as smooth as a Formica counter top without sanding. The only drawback is that compound curves cannot be made with a hotwire. Polyurethane foam would need to be used in many areas of the KR2 for its shapeability by sanding. _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
