SikaSwell® S-2 is a 1-part polyurethane hydrophilic sealant which swells in contact with water to seal all types of construction joints and penetrations in concrete structures. It is used to adhere the SikaSwell® A a profiles to the structure. Suitable for construction joints, pipe and steelwork penetrations through walls and floor slabs, cable duct joints, and all types of connection details, the product can expand up to 200% of its original volume after 30 days in demineralised water, developing a swelling pressure of up to 10 bar in ideal conditions. It is permanently water resistant through repeated wet and dry cycles and offers good adhesion to a variety of substrates. BBA certified in system with SikaSwell® A-2010, and LEED v2009 compliant. Suitable for construction joints, pipe and steelwork penetrations through walls and floor slabs, cable duct joints, and all types of connection details, the product can expand up to 200% of its original volume after 30 days in demineralised water, developing a swelling pressure of up to 10 bar in ideal conditions. It is permanently water resistant through repeated wet and dry cycles and offers good adhesion to a variety of substrates. BBA certified in system with SikaSwell® A-2010, and LEED v2009 compliant. Benefits 1-part, easy and fast to apply Highly economical joint sealing solution Versatile solution for joints and details Optimised expansion rate Permanently water resistant Good adhesion to various substrates BBA system approvals with SikaSwell® A-2010 Good to know Substrate must be dry or matt damp, do not apply in construction joints with standing water Curing rate 1 day (+23 °C / 50 % r.h.) 2.0mm Curing rate 10 days (+23 °C / 50 % r.h.) 10mm Place SikaSwell® profiles onto SikaSwell® S-2 within a maximum of 30 minutes. Substrate/ambient air and product temperature minimum +5°C, maximum +35°C Substrate must be clean and dry Rough surfaces are susceptible to leaking. If the surface roughness cannot be leveled with SikaSwell® S-2 the roughness need to be removed. Use an appropriate Sika leveling mortar or mechanical treatment before the SikaSwell® S-2 and SikaSwell® A profile profile is applied Freshly cast concrete can be smoothed with a batten where SikaSwell® S-2 is to be placed. Make sure any tools are cleaned after use
