NL Parts Washer contains a complex and very unique mixture of nonionic and anionic plant based surfactants with natural mineral complexing agents. NL Parts Washer is an excellent choice for chemical cleaning of hydrocarbon foulants such as oils, greases, waxes, gums, tars . Safe on all ferrous and non-ferrous metals. NL Parts Washer provides a highly effective and easy-to-use alternative to compounds containing volatile organic solvents, halogenated solvents, petroleum-based degreasers and inorganic phosphates. Contains no heavy metals – biodegradable and exhibits little environmental impact when disposed of properly. On-site use eliminates cost of dismantling equipment, sending it off-site for cleaning services and reassembling.