I'm building an Ultra Sport .40 and I'm to the part of the wing build where I am supposed to cover the wing joint with fiberglass cloth. I've never done this and from what I can gather its a VERY important part of the wing building process - I don't want to fudge it up.

The manual says to tack it down with 3M 77 spray and then run lines of thin CA over it until its saturated.

The little I've been able to find on these forums/internet says to use fiberglass resin or epoxy. I have lots of epoxy and was leaning towards doing that. However, I've seen some people say to thin it with denatured alcohol and some say don't. Also when I do it do I need to do the entire thing at once? Or can I do the top part, let it dry, then come back and do the bottom?

Also, if you could post up how you do it with what you find to be the easiest and best method, and any tips/tricks, it would be greatly appreciated! Thanks!