Aenso Primeuse Pre WashPrimeuse is a concentrated Pre wash, used on heavily soiled surfaces before washing. It helps to loosen deposits of road grime, salt and grease. Primeuse is used on the exterior and engine bays of motor vehicles. Spray on soiled surface and leave to react. If required, agitate with a soft brush. Wash away with pressure washer. This product can be added to Aens Polaris Snowfoam and Aens One shampoo to boost their performance. Do not leave to dry on the