Froglube is a non-toxic substance that dissolves carbon, grease and sludge on contact. It has a heavy specific gravity which allows it to "season" the metal by absorption deep into the pores and results in a durable slippery surface that reduces friction. Metal, plastic, urethan, nylon or other durable surfaced treated with Froglube are rejuvenated, perserved and will give extended years of service. Froglube will not harm the environment. It can be disposed of without the need of HAZMAT controls.