Times Microwave Professional Weatherproof Self-Bonding Silicone Sealing Tape for Coax Connectors / Antennas (1.5" x 15') Easily seal outdoor coaxial cable connections from moisture and corrosion Use on all cable connectors exposed to water, dirt or chemicals. Each roll can seal up to 6 coax connections - Wider, Longer & Thicker than most other brands. This is the tape professional antenna installers use - 3 Year Manufacturer's Warranty. S-T-R-E-T-C-H this tape up to 3 times its initial length when applying to activate it.