Quattro Industrial HDS Degreaser is designed as a powerful, water based, solvent degreaser for Heavy Duty cleaning applications: Mining Equipment and Vehicles, Agricultural Equipment and Vehicles, Engineering workshops, Steel Manufacturing Industries, Petroleum Plants and Equipment, Hydraulic Manufacturing Industries, Workshop floors etc. Caustic-free technology growing around saving the environment, Quattro Industrial HDS has been designed as an environmentally friendly product that will have little to no impact on its surrounding environment. Directions for Use: Quattro Industrial is HIGHLY dilutable for use on all types of soiled surfaces and equipment dependant on soil type and removal including very effective high pressure cleaning. To find the right dilution start with a weak dilution and make the dilution stronger until the appropriate dilution is found. For porous, it is recommended to pour the undiluted product over the contaminated area, brush with a broom and add small amounts of water, allowing to stand a few minutes at a time to give the chemical time to penetrated and dissolve contaminants that are deeply absorbed in the surface. Once complete, rinse thoroughly with clean water and allow surface to dry. These steps may need to be repeated on heavily soiled surfaces. This product is now even FOOD-SAFE certified by Intertek and may be used in any environment where people work with food and beverages.