Self-Expanding Joint Sealing System for Concrete
SPANDEX is a cork-based, polyurethane-reinforced material which self-expands on exposure to weather or green concrete. This self-expansion creates an interference pressure within the concrete joint sufficient to seal the joint. No additional sealers are required. Once installed, SPANDEX follows structural movement of the slab, expanding and compressing to maintain a positive seal against joint faces.
For more than 30 years Spandex has been used in a number of civil engineering projects including airports, roads and pavements, power stations, dams and water channels, and wharves and docks.
Download the Spandex Brochure here.