Repair TapesNu-Calgon’s Quick Seal Repair Tapes are quality sealants used to permanently seal air and water leaks, states the company. Utilizing MicroSealant™ technology, they include Double-Sided Putty Tape, Alumi-Tape, Web Tape, and Roof Repair Tape (black or white). Designed not to harden, crack, or fall off, the tapes fix non-pressurized leaks and are used on a multitude of applications with easy installation.