Bentonite Water Swellable Bar 20x25mm

About Bentonite Water Swellable Bar 20x25mm

A Bentonite Water Swellable Bar (20mm x 25mm) is a type of waterstop used in construction, particularly for waterproofing joints in concrete structures. The bar is made from bentonite, a natural clay material that swells when it comes in contact with water. This swelling action helps to create a tight seal, preventing water from seeping through the joint.

Key Features:

1. Material:

   • Made from sodium bentonite, a highly absorbent clay.

   • The bentonite has the ability to swell when exposed to moisture, which helps in blocking the passage of water.

2. Dimensions:

   • The 20mm x 25mm size you mentioned refers to the bar's width and height, which indicates its ability to fit into specific construction joints.

3. Usage:

   • Commonly used in construction joints (e.g., between precast concrete panels, walls, slabs, and foundations).

   • Ideal for areas where water pressure is expected, such as underground structures, basements, and water tanks.

   • It can be used in both horizontal and vertical joints.

4. Functionality:

   • The bar swells when exposed to water, forming an airtight and waterproof seal.

   • This swelling action allows the waterstop to accommodate some movement in the joint while maintaining its sealing function.

5. Installation:

   • Typically installed in the joint before pouring concrete, either by embedding the bar directly into the formwork or fixing it along the joint's perimeter.

   • It may be attached using adhesive or mechanical fasteners depending on the design requirements.

Advantages:

• Effective Waterproofing: It helps to ensure that water does not penetrate the joint, protecting the structure from potential damage caused by water ingress.

• Durable: Bentonite is highly resistant to water, and the swellable nature of the bar ensures that it maintains its effectiveness over time.

• Cost-Effective: Compared to some other waterproofing systems, bentonite-based waterstops are generally more affordable and easy to use.

Would you like more information on how to install it, or perhaps recommendations for suppliers? Let me know how I can assist you further!

Engineered for Effective Water Sealing

Our Bentonite Water Swellable Bar is tailored for industrial environments requiring robust waterproofing. Its unique capacity to swell upon contact with water ensures that joints and seams in concrete are effectively sealed against leaks. The medium hardness combines flexibility and durability, making it suitable for diverse projects.


Versatile and Reliable Material

Made from high-quality PVC rubber, this swellable bar stands out for its smooth surface and striking red color-enhancing visibility during installation. Its consistent expansion in the presence of moisture makes it a preferred choice for contractors and fabricators aiming for long-lasting water protection.