I have been using Gideon Bros. products for 18 years (the makers of West System) as a professional boat builder, and I personally would not use it to glass an rc plane. For one thing, The 105 resin is too thick and would be heavy and difficult to pull the excess resin out. Ideally you would want something thinner, and if you thin the 105, then you start running into problems. Also, you would need to purchase the pumps to mix the product properly to ensure a full cure. Save yourself the hassle, and money, and get some Z Poxy and thin it. Or, go with the ployester.