Allows for heat expansion and contraction, resists oils, water, acids, alkalis and gasoline. Dries in 15 minutes, hardens in 1 hour, excellent adhesion and high arc-resistance with a Class F Thermal Resistance rating. Penetrates, coats and seals in one step. Tough but flexible protector/insulator for exposed wires and electrical windings. Will not chip, peel or become brittle.