Aluminum tanks seem to be the choice of today, but 20 years ago, I built mine with Safe-T-Poxy, then sloshed with alcohol resistant sloshing compound. While many have told me the slosh compound has a 10 year life, at 20 years, I see no indication of any kind of degradation in it. Perhaps that's because it had several months to cure before it ever saw any fuel.
Like Mark, the glass tanks were quick and easy to build and have been absolutely trouble free for nearly 1100 hrs of flight time. While I have exposed the tanks to alcohol on a couple of occasions, I generally only feed my plane alcohol free Mogas or 100LL when that's the only choice. Nothing wrong with building tanks of Aluminum. It's a good solution, but also comparatively tedious and time consuming to build. But once built and sealed with ProSeal, it's going to last forever. -Jeff Scott Los Alamos, NM > Sent: Friday, August 28, 2015 at 12:05 PM > From: "Global Solutions via KRnet" <krnet at list.krnet.org> > To: KRnet <krnet at list.krnet.org> > Cc: "Global Solutions" <smcdonal at kos.net> > Subject: KR> fuel tank for kr2s > > My plans arrived and I am reading the manual. Quick question for the > group. Some have made the stub wings fuel tank directly in the wing from > fiberglass and others have made them from aluminum. To me it would seem > aluminum would be a better choice but I welcome comments from the group. > In addition if anyone has used aluminum what thickness did you use and > what alloy? > Thanks > Stan

