Bentonite Waterstop

Bentonite waterstop is a kind of hydrophilic water sealing product coming with incomparable durability and higher water absorption no less than 300%. Unlike traditional clay based waterstops, this one utilizes rubber as base material to form a controlled, moisture active sealant - that means the bentonite waterstop will not expand to point losing much of integrity even being washed away by water during continually expansion.  

Features&Benefits

Quality sodium bentonite clay and rubber materials.

Moisture activated.

Strong, durable with high cost effectiveness.

High water absorption with excellent compression seal.

High expansion control ability for preserving its integrity.

Controlled internal pressure in surrounding concrete to avoid spalling and cracks.

Withstand high water pressure.

Capable to self-healing.

Easy and fast to transport and install.

Easy to joining.

Non toxic

Application

Joints with limited movements.

Construction joints and sheet pile joints.

Water containment and reservoirs.

Water and sewage treatment.

Primary and secondary structures.

Manholes and elevator pits, manure pits

Tunnels, culverts, dams, water tanks and canals.

Pipe penetrations.

Swimming pools and parking garages.

Retaining walls.

Precast concrete structure.

Foundations and basements.

Slabs and king post.

Fast track projects

Properties

Physical Properties

Test Method

Result

Color

-

Black

Specific gravity

ASTM D-71

1.35 ± 5%

Hydrocarbon content

ASTM D-4

47% (min)

Volatile matter

ASTM D-6

1% (max)

Penetration, cone at 77°F, 150 gm, 5 sec.

ASTM D-217

40 mm ± 5%

Application temperature

-

-10°F to 125°F

Service temperature

-

-30°F to 180°F

Sizes

15mm × 20mm,20mm × 30mm,20mm × 50mm,30mm × 50mm,10mm × 40mm or others as your request.

Package

15mm × 20mm and 20mm × 30mm: 25 meters/box

30mm × 50mm:10meters/box

Your nominated types of packages are also available.