Can I use this on all exterior surfaces?

Blue works best on wheels, rubber trim, and heavy-soiled areas. Red is formulated for paint and glass. Both are safe over existing wax or sealant — they clean without dissolving protective layers, so you won't strip your detail work.

Do I need special tools to apply this?

No. You can use your hands, a soft brush, or a foam applicator pad. Start small to test coverage, then work in sections. The jelly consistency makes it easy to control where you're applying pressure.

Will this dry on the surface if I walk away?

It won't harden permanently, but it'll start to set if left sitting. Apply in manageable sections and wipe or rinse within a few minutes of working each area to avoid residue buildup.