Do you mean UV prtotection? i would say modern auto clears are great , if there made for cars and exterior temps there good enough for cues , even at that peop still have cues refinished after years of play but trying to conserve color well u got me there , it may be minimal you may not notice , some clears will make product yellow or change color , i use Dupont Chroma clear but ive only made cues fr 2 years ....