Aerosol Products:
I have found these store bought products really work best when used in the wheel wells to dress them. (Just dont do on windy days, and short bursts versus long sprays)
Zaino Tire Protectant:
I have used the product and it truly is more glossy than just matte, but not quite as glossy as I like. I know they suggest using addtl coats to offer addtl gloss, but never found that particularly true.
I love three gels from us for super glossy looks, DP , Pinnacle, and Wolfgang. That said all will sling if you do not properly provide a dried surface to adhere too.
1. Dry tires with leave blower as possible, pay additional attention to the decorative ribbing.
2. Use a microfiber or cloth applicator with the gel.
3. Revisit each tire with a clean applicator to remove any excess about 5-10 minutes later. (I keep two round cloth applicators in and old wax can. The bottom is one used for gel, the second for revisit -- because the one on the bottom is full of gel, never place it on top position of it will transfer to our cleaner revisit applicator)