ORIGINAL: foosball_movie
sheeting everything and then putting on a coat of epoxy resin I think a .25 plane is going to get a little heavy.
I was wondering about that. They also suggest wrapping everything in "6/10ths ounce fiber glass cloth" for best results. That seems to be quite a bit of extra weight.
The reason for glassing before Flite Metal, or any aluminium covering is you need a good hard surface to attach it to, and when installed, it shows every detail or flaw on the surface it's attached to. You need a good smooth base to start.