PENEBAR SW® is a hydrophilic swelling waterstop designed to prevent water penetration through construction joints in concrete structures. Supplied as a flexible strip, it expands in the presence of water to form a dense and durable seal within the joint. Once installed, it provides long-term protection by filling voids and adapting to minor movements, effectively blocking water ingress even under hydrostatic pressure. PENEBAR SW® ensures reliable waterproofing performance for construction joints in foundations, retaining walls, basements, tunnels, and other concrete structures exposed to water.

PENEBAR SW® is easy to install and is typically secured in place using compatible adhesives or primers such as PENEBAR SW PRIMER®, ensuring strong adhesion to the concrete surface prior to the next concrete pour.