Flex Seal Spray Rubber Sealant Coating, 14-oz, Black (2 Pack) The easy way to coat, seal, protect, and stop leaks fast! Once dry, can be painted any color Seeps into cracks and holes. Dries to a watertight, flexible, rubberized coating. Stays flexible and pliable; lasts many years Transform and protect virtually everything! Ideal for arts & crafts, projects & hobbies Protects surface from corrosion, can be used on wet or dry surfaces Will not sag or drip in the Summer heat. Will not crack or peel in the Winter cold Read entire can. Wear face and eye protection, protective gloves, and clothing. Make sure the area is clean, dry and free of grease, oil, and dirt. Shake well: Spray 8 to 12 from surface using an even sweeping motion. Apply several even coats until ALL cracks and holes have been filled. Allow 24 to 48 hours to dry before applying another coat. Fully cures in 48 hours. Dry time depends on the temperature, humidity and thickness of the coating Use Flex Seal ONLY in a well-ventilated area. When using inside, prevent vapor buildup by opening doors and windows. Ensure fresh air entry during application and drying. Do not use near heat, sparks, pilot lights or other sources of ignition.