Multilink F-Seal was developed to maintain an internal seal against signal leakage from F-Connectors and no matter what brand of connector you are using, you must be able to seal the internal threads against the incursion of moisture, pollution, and other unpredicatable weather conditions. With a single drop of F-Seal on the thread port you will be able to maintain a more secure and longer lasting seal than with silicone grease. F-Seal is especially compounded to remain permanently elastic, even under extreme weather conditions. F-Seal works effectively in temperatures ranging from -40 to 400 degrees Fahrenheit and when coupled with a Multilink Torque Wrench and a simple weather boot you can ensure best seal possible at lowest cost. F-Seal is derived from a compound that was used to seal fittings of a space shuttle and has a proven track record beyond the Cable TV industry. Convenient twist cap and squeezable bottle.