The sodium bentonite is very important in the building industry for its ability to absorb water expanding up to 12-16 times compared to its dry volume, which makes it ideal for producing waterstop, sheets, panels, rolls and shaped self-sealants, for waterproofing of masonry or concrete walls against ground.
The CLAYSEAL waterstops, for alkaline water CLAYSEAL 25.20 and for brackish and/or leachate water CLAYSEAL 25.20 SW, are a splendid example of products that have taken advantage of the peculiar hydro-expansive capacity of sodium bentonite.
