When a car comes straight from the factory there is no “curing” needed..Opticoat can be applied right away. When it gets painted by a body shop after say an accident, it doesn’t get baked like it does at the factory thus requiring time for it to cure.That’s a great question. Whenever I’ve had collision work done, or even a new car, I believe I’ve been told to wait 3 weeks or whatever to let the clear coat harden,