how to use bondo

its called body FILLER LOL sorry that is a pet peeve of mine, people calling it bondo....awh. anyways

Its not for filling, I would do as recomended either fiberglass or weld in a pannel, welding is the best IMO. Then grind the welds, sand blast, check for pin holes, then coat with Mars glass, Fiberglass reinforced body filler, sand, then filler, then if needed light coat of Glaze.

And yes body work is something that can take YEARS to learn, to do right that is, anyone can smear some filler on a part and sand it.

filler should never need to be a 1/4 of an inch thick! Although they do say it can be a maximum thinkness of that, More hardener makes it create more pinholes, and in that case it may harden way to quick if your not quick, make sure its mixed thoroughly

Good luck!