Bentonite Strip Waterstop

Bentofab waterstop

Bentofab water stop is an expansion strip made of sodium bentonite and rubber combined. It is used for sealing joints. It seals against water. It is a kind of hydrophilic water sealer, with high water absorption. Unlike usual water sealers, bentofab waterstop utilizes rubber as base material  to form a moisture activated sealant. This provides a controlled expansion preventing loss of integrity or be washed away by flowing water.

Hydrophylic waterstops can only swell effectively at the presence of water. We recommend against the use in fuels, acids, and other chemicals as the product may not expand as intended.

Applications:

Waste water treatment facilities

Water storage tanks

Foundations

Tunnels and culverts

Dams, canals and aqueducts

Pipe penetrations

Joints with limited movements

Benefits:

Can withstand high pressure

Self healing

Easy to transport and install

Non toxic

Excellent compression seal due to high water absorption

Bentofab Waterstop comes in four forms:

Bentofab Waterstop 2030 Black:

20mm x 30mm Black

Volume expansion ratio: greater than or equal to 150

High temperature flowing(80°c x 5h):No flow

Low temperature test(-20°c x 2h): No embrittlement

Bentofab Waterstop  3040 Black:

30mm x 40mm Black

Volume expansion ratio: greater than or equal to 150

High temperature flowing(80°c x 5h):No flow

Low temperature test(-20°c x 2h): No embrittlement

Bentofab Waterstop 2030 Red:

20mm x 30mm Red

Hardness: 42±10

Tensile strength MPa: greater than or equal to 3.5

Elongation % greater than or equal to 450

Volume expansion ratio: greater than or equal to 150

Low temperature test(-20°c x 2h): No embrittlement

Bentofab Waterstop 3040 Red:

30mm x 40mm Red

Hardness: 42±10

Tensile strength MPa: greater than or equal to 3.5

Elongation % greater than or equal to 450

Volume expansion ratio: greater than or equal to 150

Low temperature test(-20°c x 2h): No embrittlement