Harbor Products F4 Self-Fusing Silicone Tape
Now you can stick your stuff in seconds with F4 Silicone Tape, a high-performance tape extruded from silicone elastomer that creates a permanet seal in a jiffy. No need to wait hours for it to cure like older versions of self-bonding F4 Tape. This ultra-fast fusing tape is incredibly strong, elastic, and resiliant to chemicals, oils, and high temperatures up to 500 °F (260 °C). Best of all, it will never come unraveled. So rest assured that with F4 Tape you're using the fastest fusing, highest quality, strongest tape there is. This tape meets and exceeds the MIL specifications for Type I and Type II Silicone Tape.