CarPro's line is built around coating prep. Ultracut Extreme is the heavy cut for hard clear coats, ClearCut and Fixer cover cutting and refining, and Essence is the finishing step that levels and adds gloss without filling, so a ceramic coating still bonds properly afterwards.
Essence Plus adds a little more cut for one step work, and the Ceriglass kit handles glass rather than paint, removing wiper scratches and hard water etching.
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