G.R.
I am to the point that after looking at mine I think they must have the white mixed in the top little bit of rubber. I took an old tire and some paint remover and had to scrub hard to get it off and it looked like I went down just a little on the level of the letter. I wonder if contacting one of the tire companies would help or is that another of their super secrets. I know I won't waste any more time painting them with the various tire lettering paint we get out here.
Ron