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.
Clayseal 25.20
Hydroexpansive, preformed sealing waterstop for watertight construction joints in structures, masonry and foundations, made from a blend of sodium bentonite, hydroexpansive rubber and special binding polymers ("hydrocarbon"). Clayseal 25.20 has a rectangular 25x20 mm cross-section and is supplied in 5 m rolls. One box of Clayseal 25.20 contains 6 rolls of 5 metres each and weighs approximately 21 kg.
Clayseal 25.20
Hydroexpansive, preformed sealing waterstop for watertight construction joints in structures, masonry and foundations, made from a blend of sodium bentonite, hydroexpansive rubber and special binding polymers ("hydrocarbon"). Clayseal 25.20 has a rectangular 25x20 mm cross-section and is supplied in 5 m rolls. One box of Clayseal 25.20 contains 6 rolls of 5 metres each and weighs approximately 21 kg.
Clayseal 25.20 SW
Preformed hydroexpansive sealing waterstop joint for reliably watertight construction joints in structures, masonry and foundations, made from a blend of sodium bentonite, hydroexpansive rubber and special binding polymers ("hydrocarbon"), specifically designed for use in contact with salt water or organic leachates. Clayseal 25.20 SW has a rectangular cross-section of 25 x 20 mm and is supplied in 5 m rolls. A box of Clayseal 25.20 SW contains 6 rolls of 5 metres each and weighs approximately 21 kg.
Clayseal 25.20 SW
Preformed hydroexpansive sealing waterstop joint for reliably watertight construction joints in structures, masonry and foundations, made from a blend of sodium bentonite, hydroexpansive rubber and special binding polymers ("hydrocarbon"), specifically designed for use in contact with salt water or organic leachates. Clayseal 25.20 SW has a rectangular cross-section of 25 x 20 mm and is supplied in 5 m rolls. A box of Clayseal 25.20 SW contains 6 rolls of 5 metres each and weighs approximately 21 kg.
Bentonet
Preformed square-mesh steel cage, trapezoidal in shape and open on one side, designed to facilitate the correct positioning of Clayseal 25.20 sodium bentonite waterstops and prevent them from shifting from their intended position, especially in complex situations or on surfaces that have not been perfectly prepared. Once the joint has been installed, Bentonet must be fixed to the concrete substrate using steel nails and washers at 20–25 cm intervals.
Bentonet
Preformed square-mesh steel cage, trapezoidal in shape and open on one side, designed to facilitate the correct positioning of Clayseal 25.20 sodium bentonite waterstops and prevent them from shifting from their intended position, especially in complex situations or on surfaces that have not been perfectly prepared. Once the joint has been installed, Bentonet must be fixed to the concrete substrate using steel nails and washers at 20–25 cm intervals.
Proseal Fix
Silane-modified polymer adhesive with sealing properties and permanently elastic performance, specifically designed for bonding seals, joints and waterstops, both bentonite waterstops (such as Clayseal 25.20 and/or Clayseal 25.20 SW) and hydrophilic rubber waterstops (such as Sealgum 20.05), in waterproofing applications for construction joints. The adhesive replaces the more traditional method of securing these watertight systems, which involves nailing.
Proseal Fix
Silane-modified polymer adhesive with sealing properties and permanently elastic performance, specifically designed for bonding seals, joints and waterstops, both bentonite waterstops (such as Clayseal 25.20 and/or Clayseal 25.20 SW) and hydrophilic rubber waterstops (such as Sealgum 20.05), in waterproofing applications for construction joints. The adhesive replaces the more traditional method of securing these watertight systems, which involves nailing.