Blue Monster compression seal tape from Clean-Fit Products, a division of The Mill-Rose Company, seals leaks under pressure (up to 150 psi) on galvanized, cast iron, copper and all types of plastics and rubber. The tape has self-fusing layers that form a waterproof seal by compression, without the use of adhesive. Pulling and wrapping the tape tightly around problem leaks creates a chemical reaction that fuses the layers of tape into a mass of silicone. Once fused, the silicon mass forms a heavy-duty bond on the leak or connection that serves as the emergency or long-term repair. It is nontoxic, safe for drinking water applications, and effectively seals up to 500 degrees F. 800/321-3598; www.cleanfit.com.