Can I top it off with an additional coating ? April 27, 2022 08:54 Updated No, but Q² Wax can be layered over it, 12h after application. Related articles Can I use it as a top coat to another coating? How long does the product need to dry/cure ? Can I apply it on top of a wax? Can it be applied on a wet surface ? How to store the product after use? What is the shelf life once opened?