Complete kit contains everything required for making professional quality permanent repairs in just minutes. State-of-the-art components and easy-to-follow instructions with photographs. Repairs all types of plastic tanks. The repair resin is designed to harden within 8 to 10 min and cures in 30 min. Repairs can be made ideally at temperatures from 50 to 75 deg F. Repairs cracks up to 4 in long and holes up to 3/8 in Dia.