No. Solvent only “wears out” when it has too much other stuff in it, like oils and greases. The StillClean is a distillation unit that will separate your solvent from all of the oil and grease, returning the solvent to a pure state. Our process is analogous to the evaporation of water and its return via rain. Water never wears out because each time it is evaporated by the sun, it is separated from the impurities in the water. The StillClean also uses an evaporation process that has the same net effect. The result is just pure, clean, water-like solvent that you can use continuously. No matter how many times your solvent has been distilled through your StillClean, the solvent that comes out of the StillClean will always be of the highest quality.
