Sikaflex 1c SL is a single component, self-leveling, premium-grade polyurethane sealant with an accelerated curing capacity. Sikaflex 1c SL can be used in concrete joint 24 hours after the concrete is poured and also in damp concrete applications. Sikaflex-1c SL is used to seal horizontal expansion joints and control joints in concrete and cementitious slabs such as sidewalks and high traffic entrances, parking lots, balconies, pavements, terraces, warehouses, factories, and plazas.