For those that like Liquid Roof’s RV roof coating, this is a good option as the huge size of the carton makes it very economical for its price. At four gallons, this product will easily cover the top of RV roofs. Plus the product inside is high quality. It has a white finish which is perfect for deflecting sunlight and will also create a watertight seal upon impact. This tub of liquid rubber will last for years. To apply this coating you’ll need to clean the top of your camper, then apply an even coat of product. When you follow the direction for this liquid rubber coating system, it’ll protect your vehicle from sun and rain for a long time.