Seal unwanted liquids out of your drain by covering it with a flexible Drain Cover. This tough but easy-to-handle Drain Cover is made of solid polyurethane. It's tacky on both sides, so either can be used for forming a tight seal to block contaminants. More chemical resistant than rubbers or plastics, Drain Cover stands up to a wide range of chemicals, solvents and oils. Reusable; can be washed then stored in the handy, portable box.