Fiberglass resin is about 15.00 dollars bondo is about 12.00 and the epoxy clay is about 30.00 after shipping.
The fiberglass resin will make the pepakura piece sturdy and strengthin the item. Once it dries you can use fiberglass mesh inside with resin to give it a very strong and durable finish. This will make the bondo process easier and also protect your piece from collapsing or breaking. You will have to sand the bondo as it dries very fast when applied.
Sorry, I didn't. I can put a tutorial on my next project from start to finish if you would like? I didn't think many people would be interested. Actually I really didn't think I would have gotten this much feedback. It really makes me feel good. Thank you.
If you put up a tutorial, I'm sure it would be heartily welcomed. I'm finding many people such as myself interested in pepakura and professional sculpting, but without all that many means of beginner tutorials. Please do good sir. c: