Raised letters........

The problem from what I understand is the impurities in the rubber constantly raise through the white pigment in the rubber. I found a steam cleaner to be one amazing way to get perfect white letters. We noticed at the corvette shop some tires are real bad with browning. We talked with BFG about problems with their white lettering and they said some thing along the lines of batches the dye that is impregnated in the rubber may have been more unstable .. Not sure. Coker tires have also mentioned issues with certain batches at times also. Possibly try a tire coating? Maybe someone that has tried that can chime in on experience. Not sure about use on white letters.
 
I've found Bleache-White to still be THE product to make white letters or whitewalls white. You still need a good brush and some elbow grease though.

I also agree with Alien Kleen, although I've never used it on anything white on the tires, over the years this product has always gotten the job done, so I see NO reason to think it wouldn't here either!

I have to agree, Bleche White is the way to go. I have raised white letters on my '72 Chevelle and this makes them nice and bright.

I start with a cool, dry tire, and liberally spray Bleche White on the rubber. Let it soak for a minute or so (you'll see it running with dirt) then, scrub with a wet brass brush. The letters will brighten up, and the black of the tire will get a little grayish. Once dry, apply a silicon tire dressing. I think you'll be very pleased with the results.
 
After you clean the letters apply Tuf-Shine clear coat. This will keep the letters white for a long time. You may or not want to do the rubber on the tires. This depends on how you want to your tires to look.

The problem from what I understand is the impurities in the rubber constantly raise through the white pigment in the rubber.

I never really thought about this before since it's been so long since I've had RWL or whitewall tires, but this browning is probably the same release of antiozonant that turns the black part of the tire brown.
 
Thank you for the great advice. I will give some things a try and let you know what worked. Thank you!!
 
I have really great stuff for mine but since it's not sold on here I can't show you. White as snow and it takes the tire dressing and grime right off. Sorry. unless I have permission.
 
I gave up trying to clean the brown off. I've been using Tuf Shine for a couple years now and the browning always comes back.

A Duplicolor Paint Pen works awesome! No scrubbing and no elbow grease. About 10 minutes per tire and they're as white as ever. It lasts about 6 months and I reapply. I've done my tires 4 times now and it's not out of paint yet. Well worth the money.

I'll see if I can find my pictures.
 
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