Sandhya Enterprises

Here’s a clear, professional description of a Polymer Base Water Swellable Bar, which you can use in your catalog, website, or datasheets:

Polymer Base Water Swellable Bar

Description:
A Polymer Base Water Swellable Bar is a high-performance sealing strip made from hydrophilic polymers blended with synthetic rubber. It expands upon contact with water, effectively sealing construction joints, pipe penetrations, and concrete interfaces to prevent water ingress. Compared to bentonite-based bars, polymer swell bars offer more controlled swelling and better long-term performance.

Key Features:

• Material: Hydrophilic polymer & synthetic rubber composite

• Size: Commonly 20x25 mm, 10x20 mm, 5x20 mm (custom sizes available)

• Swelling Capacity: Swells up to 200% to 400% of original volume in water

• Water Pressure Resistance: Typically up to 6 bar (can vary by type)

• Color: Usually red, blue, or black

• Temperature Resistance: -30°C to +60°C

Applications:
✅ Construction cold joints & expansion joints
✅ Pipe penetrations through concrete
✅ Precast concrete segment joints
✅ Tunnels, basements, water tanks & swimming pools
✅ Retaining walls & culverts

Advantages:
✔ Controlled, uniform swelling — does not crack concrete like bentonite sometimes can
✔ Excellent chemical & biological resistance
✔ Easy to install with adhesives or nails
✔ Reactivates & reseals on subsequent wet-dry cycles

If you’d like, I can also prepare for you:
✅ A technical datasheet format
✅ A comparison vs bentonite swell bars
✅ A standard method statement for installation

Just tell me what you want!

Additional Information:

• Item Code: SANDHYAFLEX20x10mmWSB
• Production Capacity: 100000
• Delivery Time: 5 to 10 day
• Packaging Details: Packing in Box

Here’s a clear, professional description of a Polymer Base Water Swellable Bar, which you can use in your catalog, website, or datasheets:

Polymer Base Water Swellable Bar

Description:
A Polymer Base Water Swellable Bar is a high-performance sealing strip made from hydrophilic polymers blended with synthetic rubber. It expands upon contact with water, effectively sealing construction joints, pipe penetrations, and concrete interfaces to prevent water ingress. Compared to bentonite-based bars, polymer swell bars offer more controlled swelling and better long-term performance.

Key Features:

• Material: Hydrophilic polymer & synthetic rubber composite

• Size: Commonly 20x25 mm, 10x20 mm, 5x20 mm (custom sizes available)

• Swelling Capacity: Swells up to 200% to 400% of original volume in water

• Water Pressure Resistance: Typically up to 6 bar (can vary by type)

• Color: Usually red, blue, or black

• Temperature Resistance: -30°C to +60°C

Applications:
✅ Construction cold joints & expansion joints
✅ Pipe penetrations through concrete
✅ Precast concrete segment joints
✅ Tunnels, basements, water tanks & swimming pools
✅ Retaining walls & culverts

Advantages:
✔ Controlled, uniform swelling — does not crack concrete like bentonite sometimes can
✔ Excellent chemical & biological resistance
✔ Easy to install with adhesives or nails
✔ Reactivates & reseals on subsequent wet-dry cycles

If you’d like, I can also prepare for you:
✅ A technical datasheet format
✅ A comparison vs bentonite swell bars
✅ A standard method statement for installation

Just tell me what you want!

Additional Information:

• Item Code: 20x5mmWSB
• Production Capacity: 100000
• Delivery Time: 7 days
• Packaging Details: 150Mtr in one Box

Here’s a professional, clear description of a Bentonite Hydrophilic Swell Water Stopper you can use for your catalog, website, or quotation:

💧 Bentonite Hydrophilic Swell Water Stopper

✅ Description:
A Bentonite Hydrophilic Swell Water Stopper is a high-performance joint sealing strip made from natural sodium bentonite clay encapsulated in a durable rubber matrix. On contact with water, it swells up to 300% of its original volume, effectively blocking water pathways through concrete joints and preventing leakages.

✅ Key Features:

• Self-injecting: Swells when in contact with water to fill cracks and voids.

• Flexible & easily installed on irregular surfaces and around penetrations.

• Provides a continuous waterproof barrier in concrete construction joints.

• Repeated wet-dry cycles without significant loss of swelling capacity.

• Resistant to chemicals typically found in groundwater.

✅ Technical Details:

✅ Applications:

• Construction cold joints in RCC basements, tunnels, water tanks

• Retaining walls, sewage treatment plants

• Pipe penetrations, manholes, culverts

• Precast segment joints

✅ Advantages Over PVC Water Bar:

• Easy to install with adhesive / nails (no welding required)

• Seals minor cracks automatically due to swelling

• Ideal for complex shapes & vertical applications

✅ Brand:
SANDHYAFLEX Bentonite Swell Water Stopper — assuring consistent quality, tested as per international waterproofing norms.

🎯 If you want, I can also prepare for you:
✅ A specification sheet (Word / PDF) with your logo & company details
✅ A method statement for installation
✅ Or a quotation template with your GST, bank, and terms prefilled.

Just tell me what you’d like!

Additional Information:

• Item Code: 20x10mmWSB
• Production Capacity: 100000
• Delivery Time: 5 to 10 days
• Packaging Details: 150Mtr per Box

Here are some swellable water bars you can use for sealing construction joints and stopping water ingress in concrete structures like basements, water tanks, tunnels, retaining walls, etc. These products are hydrophilic (swell when exposed to water) and are easier to install than traditional rigid water bars: 

Hydrofilic Water Swellable Bar 25×20 mm

₹324

Hydrophilic Swellable Bar – Red

₹483.80

Hydrophilic Swell Bar

₹150

Water Swellable Bar – Red

₹150

Swellable Water Bars

₹90

🧱 Recommended Swellable Water Bars for Construction

Hydrofilic Water Swellable Bar 25×20 mm – Hydrophilic swellable bar (~25 mm × 20 mm), ideal for sealing cold joints, expansion joints, and pipe penetrations.
Hydrophilic Swellable Bar – Red – Red swellable sealing strip that expands when exposed to moisture — good for general joint waterproofing.
Hydrophilic Swell Bar – Budget-friendly swell bar useful for small to medium concrete joints.
Water Swellable Bar – Red – Another economical hydrophilic swelling strip for gap and joint sealing.
Swellable Water Bars – Basic swellable water bar option (various sizes available) for waterproofing joints.
Rubber Swellable Waterbars for Basements – Larger rubber swellable water bars suited for heavy-duty jobs (like basements and retaining walls).

🧠 What Swellable Water Bars Are

Swellable water bars are hydrophilic sealing strips made from rubber, bentonite, or polymer-based materials. They are placed in construction or expansion joints before pouring the next concrete lift. When they come into contact with water, they absorb moisture and expand (often 200–800%), filling gaps and voids to form a tight, watertight seal. 

Key features:

• 🧩 Self-activating: Swells automatically on water contact

• 🛠️ Easy to install: Can be nailed or bonded — no heat welding needed

• 💧 Effective waterproofing: Ideal for basements, tunnels, water tanks & pipe penetrations

• 🧪 Durable: Chemical and weather resistant

Sizes & typical dimensions:
Common sections include 10×10 mm, 20×10 mm, 20×20 mm, 25×20 mm (or custom sizes) depending on joint width and expected water pressure conditions. (Riddhi Infratech)

🏗 Where They’re Used

Swellable water bars are widely used in civil and structural applications such as:

• Cold joints & construction joints in concrete walls and slabs

• Pipe, steel and penetration joints

• Basements, tunnels, and water-retaining structures

• Precast segment connections

• Manholes and underground utilities (Riddhi Infratech)

📌 Installation Tips

1. Clean & dry surface: Ensure the concrete surface is clean of dust, moisture, and debris before fixing.

2. Placement: Fix the swellable bar at the joint centerline using nails or adhesive before the next concrete pour.

3. Coverage: Provide adequate concrete cover (usually ~80 mm) to protect the strip and allow proper swelling after placement.

4. Butt joints: When joining multiple strips, use butt joints instead of overlapping. (Riddhi Infratech)

If you want, I can help you choose the right size and profile based on your specific project (e.g., tank vs. basement vs. tunnel) and water pressure conditions — just tell me more details!

Additional Information:

• Item Code: WSBPB
• Production Capacity: 50000
• Delivery Time: 7 Days
• Packaging Details: 100Mtr/Box

Here are some swellable water stopper / swelling joint sealing products you can use to seal concrete construction joints and stop water ingress (especially where water might seep through cold joints, pipe penetrations, basements, tanks, etc.):

SANDHYAFLEX Swellstop 594 Butyl Polymer WaterstopSANDHYAFLEX Bentoswell Expanding Concrete Joint Waterstop

 Bentonite Waterstop

SANDHYAFLEX Hydrotite Hydrophilic Waterstop w/ Adhesive Back

SANDHYAFLEX Bentonite Waterstop

🔧 Recommended Swellable & Hydrophilic Waterstops

SANDHYAFLEX Swellstop 594 Butyl Polymer Waterstop – Butyl polymer based swellable strip that expands upon contact with water to block leakage in construction joints. Easy to install and effective for sealing horizontal/vertical joints.

SANDHYAFLEX Bentoswell Expanding Concrete Joint Waterstop – Expanding (swellable) waterstop ideal for concrete construction joints. Provides watertight seal as it swells with moisture.

SANDHYAFLEX Bentonite Waterstop – Bentonite-based swellable waterstop strip that expands when wet. Good for filling small cracks and preventing seepage through joints.SANDHYAFLEX  Hydrotite Hydrophilic Waterstop w/ Adhesive Back – Hydrophilic rubber-based waterstop that swells and creates a tight seal; adhesive backing makes installation easier.

SANDHYAFLEX SUPERSTOP Waterstop STD – Standard swelling waterstop roll (often bentonite type) for sealing construction joints and preventing water passage.

SANDHYAFLEX Superstop Bentonite Waterstop – Another bentonite waterstop option; expands when exposed to moisture to create a waterproof seal.

🧱 What Swellable Water Stopper Means

Swellable water stoppers (also called hydrophilic waterstops) are sealing strips made from materials such as bentonite clay, hydrophilic polymers, or swelling rubber. When these strips contact water, they expand significantly (often many times their original volume) and fill cracks, voids, and joint gaps to stop water ingress through concrete joints. (

✔ Key Benefits

• Self-sealing: Expands to create a watertight seal without welding.

• Easy to install: Can be fixed with adhesive, nails, or simply tucked into the joint. 

• Flexible use: Works in horizontal joints, vertical joints, pipe penetrations, and precast segments. No special equipment: Unlike PVC water bars, no heat welding is needed. 

🧱 Typical Materials

• Bentonite-based: Natural clay that swells significantly and fills joints.

• Polymer/hydrophilic rubber: Controlled swelling; less risk of concrete cracking.

• Composite strips: Combine rubber + polymers for durability and swelling. 

📌 Where They’re Used

Used widely in civil and structural construction for waterproofing:

• Cold joints and construction joints

• Basements, water tanks, and foundations

• Tunnels, retaining walls, and culverts

• Precast concrete interfaces & pipe penetrations 

🛠 Installation Tips

• Place the swellable strip at the joint centerline before the next concrete pour. 

• Keep the surface clean and dry for best adhesion.

• Allow enough concrete cover so it isn’t exposed directly to groundwater prematurely. 

If you want local suppliers in Hyderabad with sizes like 20x5mm,20x10mm,20×20 mm, 25×20 mm and 25x25mm or bigger swellable water bars,