This is an old thread, but I thought the forum members could gain some insight by giving my experience with the product.
I purchased Power Sheen's Tire Bright system to avoid all of the same results - tire sling, greasy, staining etc. My first application was on used tires on my Porsche 944S. These tires (about a year old) have been dressed with Meguire's Endurance Tire Gel after every wash. Following the directions to the letter, I thoroughly cleaned each tire with the supplied tire cleaner, rinsed and repeated until the water ran off clear. After waiting until all of the tires were completely dry, I applied a coat of the tire shine with the applicator being careful not to get any product on the rims. Once dry, I applied a second coat and let everything dry overnight.
I drove the car to work (30 miles) the next morning. While walking away from the car, I noticed the tires didn't look as if they were newly dressed. Instead upon closer inspection, it seemed that the product was cracking which gave an overall opaque appearance. Some areas were fine, but other areas, especially the front tires were dull.
Two months later I purchased a full set of brand new tires for my Acura NSX-T. These tires have never had any product or dressing on them. Again I followed the instructions first using the tire cleaner and then applying the tire shine. I let the product dry overnight - it looks great after 1st applying BTW! I drove the car to work, and once again found the same cracking results.
I don't think that I misapplied the product as I got the same results on two separate cars.
If you are at a car show and have the car on display, I agree that they tires will look great. But from my experience, once the car is driven, the product comes up a little short for of my complete satisfaction.
