Hi John Lining/repairing the wing tanks.
I did this to my KR2, though mine leaked due to an accident. Sorry not photos of the work, I'm camera shy. Here are a couple of points to ponder: - Use vinyl ester resin - Old tank surfaces must be ground with a grinder to ensure a good bond. (Remember if the old job is with vinyl ester then the surface will have a slight wax finish) - Lay up the tank bottom on a sheet of window glass, just wax it with mould release wax. You can even lay up with a layer of foam to make a foam sandwich, this will be very rigid so also coat the window glass with PVA to help get it off the window glass. To get a really smooth finish and no pin holes, first paint the window glass with resin only and let it start to go off, timing is everything here (no watching TV while waiting), then do your lay up as per normal. - When joining the bottom to the tanks with flox both surfaces must be ground to remove the wax and the flox must be mixed with vinyl ester. Have fun Regards Barry Kruyssen -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Gotschall I was thinking of cutting open the bottom of the wing and taking the tank bottom out. Then laying up 1 or two layers of light glass and vinyl ester resin inside the existing tank top and sides. At the same time replacing the filler necks, caps, vents, etc. Then laying up a vinylester flat sheet, again 2 layers of bid on something it can be removed from (suggestions? wax paper??) and later attaching the cured flat to the tank as a bottom plate (with flox?). Then foaming into place a bottom sheet of foam, sand to the shape of the wing then glass over and refinish the bottom of the wings. Can anyone point to a site outlining a re-work of wing tanks? Modern material on old glass?
