Pros: Very easy to use.
Cons: If sprayed on the paint, it can damage it.
I have been using Meguiar's High Gloss Hot Shine Tire Spray for a couple of years now. The clear 24 ounce adjustable 2-way sprayer plastic bottle lasts for approximately 50 tires per bottle. The sprayer nozzle can be pulled out for a narrow spray or pushed in for a wide spray.
I usually apply this clear liquid after washing the car. I let the tire dry before applying it. I use the sprayer in the narrow spray position so that I don't splatter it on the painted surfaces around the tires. I've never had a problem with the product spraying on the painted surfaces. There is a caution note on the bottle that says if splatter occurs, remove it immediately. I would think that if this product gets on your clothes to wash it off immediately to prevent staining. Also, do not apply to tire tread, motorcycle or bicycle seats, or pedals. Store it in a secure upright position.
As with most chemicals, there is a caution that this product is combustible. Keep it away from heat and open flames. Use it in a well ventilated area. It contains petroleum distillates. If swallowed, do not induce vomiting. Call your physician or poison control center immediately. For eyes, rinse gently and thoroughly with lukewarm water. For skin, wash with soap and water. Keep out of reach of children.
With all of the tire shine products I have used, Meguiar's Hot Shine Tire Spray is much easier to use and much less messier than other products where I had to apply it with an applicator. With an applicator I couldn't avoid getting the polish on my hands when applying it or when cleaning the applicator. This product is applied by simply spraying it onto the tire, holding it about 4 to 6 inches away from the tire, turning the sprayer nozzle to the off position, and walking away leaving it to dry in a well ventilated area. The water resistant polymers combined with antiozonant technology keep my Z4 tires looking blacker longer while preventing cracking, browning, and premature aging. One bottle treats about 50 tires.
Meguiar's High Gloss Hot Shine Tire Spray is a very easy to use product that gives my tires a deep black, wet look that lasts for weeks.