Sikaflex 406 KC 10 Litre self levelling floor sealant for concrete & KC Booster406 KC 10 litre tin Concrete grey colour150ml KC booster accelerant RRP £220Sikaflex-406 KC is a 1-part self-levelling booster accelerated elastic floor joint sealant with high mechanical and chemical resistance. Rapid and homogeneous curing throughout the entire sealant is achieved by the addition of the Sikaflex 406 KC Booster (included)Movement capability ±25 %.Low stress on joint edges.Very high mechanical and chemical resistance e.g. to diesel and jet fuel.Recessed and broadcasted joints can be opened to traffic after 3 hours.May only be used by experienced professionals.