Expansion ratio: 220-400%
Bentonite waterstop is an absorbent strip used to seal and waterproof concrete joints. It is commonly made of natural sodium bentonite clay and synthetic rubber. It is a new type of waterproof material, water stop, waterproof effect is more reliable than ordinary rubber. In contact with water the waterstop strip will swell approximately 250% of its original dry volume, the expansive clay mass will seal the cracks and small voids in the joint.
◆ Sealing construction joints
◆ Cold joints and working joints in concrete
◆ Around pipe penetrations
◆ Sewer joints
◆ Against slurry walls
◆ Sheet piling.
It can be used in combination with infiltrate stop in situation, which is deemed to be high risk.
◆ Ecological and user friendly system: simple and quick to install by means of gun nailing.
◆ Resist hydrostatic pressures of up to 80 meters of water column= 8 ba.r
◆ The highly elastic and plastic properties of bentonite water-stop will easily. counterbalance the initial concrete shrinkage of the structure.
◆ Can fill small honeycombs.
◆ No dissolve in water and is non-polluting.
Index (Black or Red)
Volume expansibility %≧
Flow at high temperature (80℃×5h)
Low-temperature test (-20℃×5h)
◆ Plastic film, release paper, cartons, and pallets.
10mm×20mm: 10m/roll, 80m/carton; 15mm ×20mm: 7m/roll, 49m/carton;
20mm×25 mm: 5m /roll, 30m/caron; 20mm×30 mm: 5m /roll, 25m/caron;
10mm x40mm or 30 mm × 50 mm: 3m or 4m or 5m/roll
For LCL: 45-54 cartons on one pallet.
For FCL: 490 cartons in a 20 ft container.
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