Quick view Choose Options Sikaflex 1C SL - Flexible Self Leveling Polyurethane Concrete Expansion Joint and Crack Sealant - Sikaflex 1CSL 10 oz. (Full Case or Half Case)-Limestone & AWF 2000 Heavy Duty Caulk Gun Sikaflex... Sika $138.79 - $215.79 Sikaflex 1C SL Kit - Self Leveling, Polyurethane Sealant - Sikaflex 1CSL 10 oz. (Full or Half Case)-Limestone & AWF 2000 Heavy Duty Caulk Gun