Cresco® expanding waterstops

The Cresco® range of expanding waterstops is used to seal construction joints, especially those with complicated geometrical joint shapes. Cresco® waterstops are fixed in position using nails or glue. All waterstops have excellent resistance to chemicals. A watertight seal is achieved when the waterstop swells after water ingress into the joint.

Cresco® BT is a sodium bentonite based expanding waterstop that expands in a controlled manner by up to approximately 350 % whilst maintaining its shape. Cresco® BT is suited for use in areas with wet and dry cycles and can be used under adverse weather conditions.

Cresco® PU is a polyurethane based expanding waterstop that expands in a controlled manner. Due to its specific material properties, Cresco® PU is also suited for use in areas with wet and dry cycles.

Cresco® AC is an acrylatepolymer based expanding waterstop that expands in a controlled manner to ensure a tightly sealed concrete construction joint. Due to its low profile with a 6 mm thickness, unintended spalling of the concrete surface due swelling pressure is avoided.

Intec® Combi is a combination of an expanding waterstop with an injection hose and has been developed for simple and secure sealing of construction joints. This combination between expanding waterstop (primary seal) and injection hose (secondary seal) ensures excellent watertight joints under all conditions. Subsequent injection of the hose is only necessary if leakage occurs.