We only use High Quality vinyl and all of them give you the possibility to be protected with a good transparent paint, after 24/48 hrs before the kit installation. Protective Transparent Paint: Optional: To use it or not belong to you, in any case it will be better to make it last longer. Recommended: We recommend to use the protection for a better result and to last longer. Required: In that case you must use it to preserve the kit. All of our kit are guaranteed if only the protection paint is used.