Kenny, McDonnell Douglas built 50 F-4 Phantoms with fiber glass/ epoxy rudders for the Navy. One came through the depot I worked at after 15+ years of service and was still suitable for flight. Bob, New Bern NC ----- Original Message ----- From: <[email protected]> To: <[email protected]> Sent: Friday, June 23, 2006 8:13 AM Subject: KR> Expected Lifespan of Construction Materials
> Have any of the KR builders out there researched the expected lifespan for the epoxies and plastic materials used to construct a KR? > > I know I have experienced breakdown/deterioration/debonding of some of the various commercial plastic, foam, and/or glued items that I have had over the years. One example is a pair of cycling shoes which had a stiff plastic sole and a vinyl/plastic upper that was bonded together with some sort of glue. After about 10 yrs, the glue started turning into a powder and the bond between the sole and the upper failed. I have R/C airplanes that are approaching 20 yrs old that have no signs of glue deterioration (CA and epoxy glues), yet. Some of the epoxies used have seemed to have undergone a transformation as the color of the epoxy has changed over the years. > > Thanks, > Kenny > -- > Jesus, who do you say He is?!?! > John 3:16 > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html
