This rubber-based brush-on liquid tape forms a protective, waterproof, UV-resistant, dielectric seal around spliced electrical wire to protect against corrosion, shortages, electrical shock and vibration. the quick-drying fluid cures in 24 hrs and will not deteriorate or unravel like traditional tape. resistant to chemicals, solvents, salt water and other common fluids, to achieve connections that last for decades. to apply, shake well then use brush built into the cap to liberally brush the liquid over the splice/connection. allow to dry for 5 mins and then reapply if a thicker application is needed. ideal for both indoor and outdoor use and under extreme environments including automotive, marine.