I sprayed the 4*120 wing this afternoon in the manner I had described. The recipe is as follows: West Systems 105 epoxy resin mixed 5:1 with #206 slow hardener. This was then thinned 50/50 with denatured alcohol. The spray gun was filled with a total of 4fl oz of the mixed epoxy. The epoxy was sprayed outdoors in 75deg temperature. A light fogging coat was built up until a uniform high gloss wet coat was acheived. At this point I had used about 1/2 of the mix or about 2fl oz.

The thing to remember here is that the alcohol all evaporates leaving only a thin coat of epoxy. So that means the entire 1200sqin wing (top side) was covered uniformly with only 1fl oz. of epoxy.

And yes, I weighed it before and after. Total weight gain was 0.75oz (21g). This works out to a weight of .09oz/sqft or 0.8oz/sqyd, about the same weight as tissue paper.

It remains to be seen how duarable the finish is but I have to believe it will be at least as good as any other clearcoat would be. The West Systems epoxy is not glue and it does not turn yellow.

Also if I were to use an automotive style paint, I'd have to add plasticizer to keep it from getting too hard and brittle. This model is covered in Sig Koverall fabric and it needs a flexible paint. Just because a paint is good for car bodies doesn't make it suitable for model planes. I've personally painted many cars and am quite familiar with a lot of different automotive paints. These paints are not made to be lightweight or to have any of the requirements of models in mind.

I'd love to have been able to use Hobbypoxy but in case you didn't notice, it's no longer made and hasn't been for some years. What good is it to suggest paints that aren't available?

Don't assume that just because you haven't heard of something being done that it must be wrong. Isn't it possible that you don't know everything? It was from listening to the Know-it-alls on this board that led me to use the Krylon in the first place. It is now obvious that they didn't know what they were talking about. If people would stick to giving advice on what they have experience with instead of stating guesses as though they were facts, there'd be a lot fewer disasters like this to need fixing up.