Hydro-Flex is a hydrophilic waterstop capable of expanding
up to 250% upon contact with water.
Hydro-Flex is a flexible, preformed adhesive coil of specially
formulated butyl rubber. It swells in the presence of water,
filling voids in unfinished or poorly consolidated concrete
surfaces providing a lasting, watertight compression seal in
non-moving joints. Because of its special butyl rubber
composition it remains flexible and easy to handle during cold
weather conditions.
