Koch Chemie Af Active Foam 10 kg is the extremely high ratio of anionic surfactants creates a unique foam formation as well as an intensive and paintwork protecting cleaning performance and supports the self-cleaning and therefore the service life of the brushes. The attractive and long-lasting odour of sandalwood provides an intensive fragrance experience. Optimally suited as well for biological service water treatment plants. VDA conform to class A: reaction time max. 5 min, max. application concentration 1:100