STUF Dielectric water proofing filler for coax connectors used by cable installers. Just fill the coax connector with Stuf. Cable installer preferred. Stuf contains Teflon®. Just fill the coax connector with STUF and tighten. One tube contains enough product to treat 100 coax connectors. Common coaxial cables, utilize foamed polyethylene as a transmission core. STUF closely simulates this material in dielectric properties, minimizing insertion and return signal losses while maintaining signal level.