First of all, from the decorative point of view, the higher the brightness and fullness of clear coat, the better it is. From a protective point of view, the higher the hardness and weather ability, the better it is, and there is a yellowing resistance. In the end, clear coat is regardless of brand, only grade. MSK-6000 extra fast clear coat is a good one. Each manufacturer's clear coat has a different grade. Generally speaking, your painting object, high-end cars must use high-grade clear coat , of course, and the price is much higher, and it depends on your own choice.