SikaSwell S-2 Hydrophilic Waterstop Sealant 600ml

SikaSwell S-2 is a one-part polyurethane hydrophilic sealant designed to seal construction joints and penetrations in reinforced concrete structures. The sealant expands when exposed to water, forming a watertight barrier that helps prevent water ingress through concrete joints, service penetrations and structural interfaces.

The product is commonly used in conjunction with SikaSwell hydrophilic waterstop profiles to fix and seal joints prior to concrete placement. Its moisture-curing polyurethane formulation provides strong adhesion to common construction substrates while maintaining the ability to swell repeatedly when exposed to water during wet and dry cycles.

SikaSwell S-2 is widely used in basements, retaining walls, lift pits, tunnels and water retaining structures where reliable joint sealing is required within concrete construction.