FLEX GLUEâ„¢ is an easy-to-use, super-strong, rubberized, waterproof glue that instantly bonds, seals and repairs virtually everything. This adhesive's instant grab technology holds objects in place and, in most cases, eliminates the need for braces. It cures in 24 to 48 hrs and reaches maximum strength in 7 days. No need for screws or nails, it's perfect for all types of repairs. FLEX GLUEâ„¢ Pro formula has even more instant grab. This tough, waterproof glue is formulated for heavier material. It is available in a 10 oz cartridge with a dispensing method to make the big jobs easier.