Hi all, Just wondering if anyone can tell me if it is safe to use the product 'Rain X' on my visor. I use it on my car windscreen all the time coz it makes the water bead and run off quickly. Thought it would work great on the visor. But the bottle has a warning not to use it on plastics unless stated by the manufacturer. If i can't use it does someone know of a similar product that could be used.