In case of preservation is inadequate or the emulsion is too old, the result is dirt deposits and bioffiilms. These constitute a constant source of contamination in the system. They can cause malfunction and downtime in the work process. System cleaner disinfect and clean the complete plant, and should be added to the old emulsion 6 - 24 hours before the coolant is changed. System cleaner loosen dirt and bioffiilms and reliably kill micro-organisms that are released rapidly. As a result, along working life for newly used emulsions can be achieved.