My wife came home from work one day with a nice big section of bird feces. Normally, this would have concerned me because it had sat out in the sun all day at work. But knowing that the car has Opti-Coat Pro+, I was at ease knowing that the UV inhibitors in the coating prevented the feces from bonding and causing harm to the clear coat. A few sprays of Optimum No Rinse on the panel and onto a clean microfiber cloth made for a quick clean up with no scratching or marring.