Brake Dust Repellant Spray
I know that a polymer sealant probably does the same thing, but this stuff was really easy to use...spray on leave for @ 20 secs. then wipe with a clean cloth.....
It doesn't seem to be available on the West Coast yet, so I ordered online....They also released a tire dressing that gives a rich black to the tire....I'm really impressed, normally, 'branded' cleaning products are pretty cr@ppy.
here's Michelin's info on the stuff
http://www.petroferm.com/michelin/products.htm
Someone reviewed it on Autopia, these are the pics they posted....which demo it nicely.
Spray Applied