The Rapid Ceramic Tire Coat is certainly an interesting product. I scrubbed a tire on the car where the acrylic coating went brown on me (well, the tire, which is snowflake-on-the-mountain, so winterish compound which likes to brown, bloomed under the coating). First scrub was brown suds, second scrub was white, so I figured I was good to recoat.
However, after it dried I could see there was some bare rubber, some coated rubber, and some brown areas with the coating on top. I gave it another scrub and it was better, but still not perfect, especially in the ribbed sidewall areas which had brown trapped under the coating. I'm sure I could have switched to a more aggressive cleaner and a bunch more scrubbing and gotten it perfectly clean, but I was in no mood for that since I like to scrub and coat while I'm rotating tires and they are off the car and can put them on my tire stand and spin them around for easier cleaning.
So I put the Cerakote Rapid Ceramic Tire Coat on top, and the tire looks great. Interestingly after it dried it felt "rubbery", as opposed to the acrylic coatings which feel very slick. I'm thinking the Cerakote may be a great way to refresh an acrylic coating without starting the whole silicone cycle again (requiring a lot of cleaning before coating). This car doesn't get driven much so we'll so how the Cerakote holds up. If I wind up doing the other tires I'll start another thread and maybe have some pictures.