This is only my educated guess, so use my input only as a data point. Hopefully more experienced people will provide input.
I would say it should be fine. This Spring, I applied CQuartz (the "normal" one, not UK) to my new set of OZ Racing wheels. They are a matte/satin medium gray color and the surface isn't as smooth as you'd find on wheels that are painted and clear coated. When applying the coating the only thing I noticed was the color darkened slightly. They didn't become shiny/glossy or any other change that would lead me to believe it harmed the finish.
Based on my observation, I'd think any coating should be pretty safe. However, I'd still try a tiny test spot in a low visibility area just to be sure.