Dilute 20 ml of Savon Noir in 5l of water, and proceed to wash with a sponge for counters or mop to the floor. If the stains are embedded, adjust the quantity or use it directly on the stain.
The painters use it for cleaning surfaces to be painted before work and also to wash their utensils, brushes including: remove the bulk of paint by rubbing by hand under water. When they are very impregnated with paint you can soak a few minutes in a container of water previously diluted with soap.
In the bathroom, use the Savon Noir liquid soap for cleaning bathtubs, counters, sinks, fixtures, furniture and flooring.