Radiator Specialty Co.'s Liquid Wrench Silicone Spray, Nos. M906 and M914, provides a slick coat of protection that repels water and inhibits rust. Using this chemical can extend the life of metal and non-metal surfaces. Can be used on rubber, wood, plastic and metal. The spray benefits from being both safe for painted areas and low in order. The 5.5oz and 11oz aerosol spray cans make it easy to spray large surface areas.