you must silicon around every sink Hydrophilic Water Stop
Hydrophilic Waterstops are designed to prevent water from leaking from or into concrete structures by swelling when in contact Sika Hydrotite is a state-of-the-art hydrophilic waterstop with unmatched durability and watersealing capacity. Hydrophilic Swelling Bentonite Water Stop BENTOSWELL, a hydrophilic, swellable waterstop made from high quality sodium bentonite and butyl rubber for the preventive ...