I plan to strip the cheap paint from my Retrospec frame, and keep it unpainted. I've taken off each part of my bike, except the bottom bracket.

1. I'm not completely sure what my frame material is. It's a type of steel. Is that significant for this project?
2. I've bought Rustoleum Rust Inhibitor clearcoat. Will it stick to the frame? Will it discolour?
3. Should I even use the clearcoat? I originally wanted to apply it because after I accumulate enough stickers, i'd apply the stickers and clearcoat to protect them from the sun/daily wear.

Basically, I would like a protected raw frame with decals/stickers. I would appreciate the feedback. Thanks!