I recently put a new set of radial TAs on my Camaro. I cant get the letters nice and white. They are a dingy gray blue from the coating. I have tried bleach White sidewall cleaner and scrubbing with bleach and a pot scrubber with no results. What else can I try?? Thanks in advance.

 

I used to love a cleaner called Spray Nine, but I don't know if that's still on the market or not. Simple Green is a good cleaner.

 

Just went through this on a couple of new tires, which were also Radial TA's. The only thing that would get that coating off and leave the letters a nice white was.....