PilotFighter
Posts: 1987
Joined: 10/9/2002
From: Houston,
TX, USA
Status: offline
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Nitrate dope and Dacron are both sold by Sig. Dacron is called Koverall by sig, but its really the same Dacron that is used to cover real airplanes, just a lighter, thinner version. So look for Sig Koverall. I used dope and Koverall on the fuselage. I was afraid that fiberglass would be too heavy. I thought this plane wan't big enough for fiberglass. And I am kind of alergic to it. It turns out, that I really love the Koverall and dope technique. Its very old school and easy.
First, sand the fuselage smooth with 400 paper. Then apply a coat of clear nitrate dope. (just on the wood part) I cut it with Sig dope thinner until it was almost as thin as water. It dried in about 30 minutes. Sand with 400 paper. Apply another coat of dope. Sand. Then paint it with Sig stick-it. Thats the adhesive. The plain dacron has no adhesive of its own. Then iron on the Koverall. Then paint it with 2 or 3 more coats of thinned dope. Sand between coats. Then use what ever finish you like. I used auto primer, then Lusterkote paint and Rustoleum paint. Then shot Lustrekote clear. I covered the wing and tail with Monokote, thinking that would help keep the wieght down.
If I had to do it over again, I would have covered the entire plane with Koverall and dope and painted it. The patina of paint looks more realistic than the plastic mylar film. ANd I used rattle-can paints. You could get a much better finish with a spray gun and some of the nicers paints like Glasscote. Maybe next project.
If you are good with fiberglass, then you should probably stick with what you know. This plane can be finished up very nicely. I did alot of experimenting of this project and I feel as though I was lucky to get the results that I got. I had to test several paints for compatability and reactions.
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RE: Who has Built & Flown a SIG Bonanza? - 
