There's no need to post another thread. As I said in the first one, if you don't understand, or if you have a question, just ask! We're here to help.
DO NOT USE FUTURE!! I know that there are those who use this stuff, but I HIGHLY DON'T RECOMMEND IT! This is floor polish - not paint, and therefore its' formulation isn't suitable for modeling regardless of what other peoples' experience may be. It turns yellow over time, and it can ruin your model!!It also makes painting it harder, and there is no real remover for it as others have either destroyed their decals using it, or have destroyed their paint surface with it so I say use KRYLON clear coat which IS formulated for use with PLASTIC, WOOD, AND METAL. You can use a gloss which doesn't allow for the wash to either stain, or run all over your model. The surface tension, and glossiness keep the wash from being absorbed into it, and helps with the flow of the wash to keep it in the panel lines. So the answer is NO concerning the use of FLOOR WAX/POLISH. Use either KRYLON brand clearcoat, or TAMIYA, or TESTORS, or something that IS a paint finish, and NOT something designed for use with floors like waxes, or polishes which is what Future truly is! Go ahead and seal your panel lines if you're going to either do a weathered look, or if you're going to do other colours for a "patch work quilt" look as if it has had repairs over time. I've never used a clear coat with panel lines as they're supposed to look oily so a clear coat isn't necessary over it. Ultimately it's up to you - it's your choice whether you want to or not. I'd say no personally.
~ Cobra Chris