Can I use it as a top coat to another coating? February 06, 2019 11:47 Yes, it can be applied as a top coat to any high-quality ceramic coating. Related articles Can I apply it on top of a wax? How long does the product need to dry/cure ? How to maintain a vehicle coated with that product ? What should I avoid with a coated car ? What surface can you apply Q² CanCoat EVO on?