Water Swellble Bar 25x25mm

About Water Swellble Bar 25x25mm

A Water Swellable Bar (25 x 25 mm) is a hydrophilic waterstop designed for sealing construction joints in concrete structures. This particular size 25 mm width x 25 mm height provides greater swelling capacity and enhanced sealing for larger or high-pressure joints.

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What Is a Water Swellable Bar (25x25 mm)?

It is a flexible, expandable strip made of hydrophilic rubber or sodium bentonite-based materials that expands upon contact with water, creating a pressure-tight seal within static concrete joints.

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Technical Highlights:

Property	Specification
Size	25 mm (W) 25 mm (H)
Swelling Capacity	150% 300% (depending on material type)
Water Pressure Resistance	Up to 7 bar (can vary by brand/product)
Material Options	Hydrophilic Rubber (EPDM/PU) / Sodium Bentonite
Chemical Resistance	Resistant to sewage, chlorides, and some hydrocarbons
Typical Color	Red, blue, green, or black (depends on brand)

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Material Options:

1. Hydrophilic Rubber

   • Engineered polymers that swell consistently

   • High elongation and tear resistance

   • Better for chemical-heavy or high-movement zones

2. Bentonite-Based Bar

   • Contains sodium bentonite clay

   • Swells rapidly in water, ideal for quick sealing

   • Cost-effective for standard construction joints

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Common Applications:

• Basement walls and raft slabs

• Water tanks and reservoirs

• Retaining walls and tunnels

• Lift pits, culverts, and swimming pools

• Precast panel connections

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Installation Overview:

1. Surface Cleaning

   • Remove dust, oil, and loose particles

2. Fixing Method

   • Use adhesive, nails, or mesh wire to secure the bar to the concrete surface

   • Ensure continuous placement with no gaps or overlaps

   • Protect from water exposure before concrete pour

3. Concrete Pouring

   • Gently pour concrete to avoid disturbing the bar

   • Ensure full encapsulation of the bar

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Benefits:

• Expands upon water contact to self-seal joints

• Prevents water ingress through non-movement construction joints

• Can be installed vertically, horizontally, or around complex penetrations

• No welding or heat required

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Would you like a technical datasheet, CAD detail for installation, or brand recommendations (like Sika, Fosroc, BASF, etc.)?

Premium PVC Rubber Construction

Crafted from durable PVC rubber, the Water Swellable Bar delivers exceptional flexibility and sealing capabilities. The smooth surface design further enhances its ability to create a reliable waterproof barrier, making it perfectly suited to demanding industrial environments.


Optimal Sizing for Industrial Needs

With dimensions of 25x25mm and a thickness of 10mm, this bar fits a variety of industrial sealing requirements. The compact yet effective profile ensures straightforward installation while maintaining robust waterproofing properties for diverse applications.


Reliable Solution for Indian Industry

Trusted by dealers, fabricators, manufacturers, and other industry professionals across India, the Water Swellable Bar meets rigorous safety and quality standards. Its consistent performance has made it a preferred choice for both new installations and retrofitting projects across multiple sectors.