Cable Connector Protection: STUF Teflon® Water-Proof Sealant. Best investment for your cable connector protections (terminations). Improves the electrical mating of the cable connector male (plug) and Female (jack) Resulting in improved cable connector signal quality. Helps against “arc” over. Add a small dollop (1/2oz) , tighten, and STUF will fill the valleys and voids. Moisture then will not creep into your connectors and cause electrolytic (acid) failure. Keeps the water out! An Ultra-Low Density Teflon® Dielectric Filler. Specifically Formulated to Simulate Coaxial Cable Core. Simple and easy to apply. Will not harden. Use w/Coax Seal. Additional Model #'s 261-STUF STUF