The result... Magic Lube and Magic Lube II... exceptional products for lubricating and sealing! They've been formulated to be corrosion free on many materials including rubber... even in the most adverse conditions such as salt water. Safety is also an important factor so, our formulas had to be very special... for your safety and for the safety of the environment! Magic Lube and Magic Lube II have received an environmental safety rating of H-1 by the USDA.