Meguiar's Trailer Corrosion Protectant is an outstanding solution in preventing corrosion and will last for months! This dry-to-the-touch, tack-free distinctive clear coat creates a barrier that protects against salt spray, rust, and corrosion. This formula will not harm trailer wiring, paint, or wrapped surfaces and can be used on coated and uncoated metal. Formula dries clear, leaving a protective barrier behind. 14 oz.