FrogLube CLP Liquid 4 oz Bottle Biodegradable Lubricant made from USDA Cerified Food Grade ingredients. It’s nontoxic that dissolves carbon on contact with a heavy specific gravity which enables it ot penetrate and season the metal through absorption. It results in a durable dry, slick, wax-like surface tht reduces friction and protects the metal surface. FrogLube is safe for plastic, urethane, nylon and wood. Contains no Petroleum or Water Non Hazardous