Rig Wash is a concentrated, nonylphenol free, blend formulated with the environment in mind. Use on cleaning applications requiringmore solvent cleaning power. Rig Washing, crude oil, tank cleaning and degreasing, parts cleaning and engine degreasing in the automotive, aircraft and aerospace industries. No ozone depleting chemicals, no hazardous air pollutants. Replaces toxic chlorinated solvents, glycol ether, MEK, xylene, Freon and CFC’s. Easily diluted with water without compromising it’s effectiveness. works great as, Tar and asphalt remover, graffiti remover, grease trap maintenance, lift and sewage treatment applications, printing press cleaner, metal cleaner and stain remover.