Water Proofing
Hydrophilic Swell Bar
Hydrophilic swell bar that expands 300-700% on water contact, sealing micro-voids to form a flexible, long-term watertight barrier.
Download Technical DatasheetManufactured under ISO 9001:2015 certified quality systems, built to specification for OEM and infrastructure applications.
Overview
Hydrophilic Swell Bar from Maruti Techno Rubber Pvt. Ltd. is a high-performance waterstop for construction and expansion joints in concrete structures. Made from hydrophilic polymers, it expands 300–700% on contact with water, sealing micro-voids and forming a watertight barrier that adapts to structural movement. Its ability to swell under varying moisture conditions ensures long-term, flexible protection against leakage, even under high hydrostatic pressure.
Concrete construction joints can show fine cracks or cavities during the natural curing process. This could cause water to infiltrate into the concrete. In contact with water, Maruti Hydrophilic Swell Bar will swell up to 300% to 700% depending on requirements and design considerations of its initial volume and make the construction water proof and also cavities and fine are efficiently scaled.
Key Features & Benefits
- Water-Swelling Action: Expands on contact with water to seal joints and block voids, pores, and cracks; expands dynamically to restore sealing capacity with self-healing action—no fastening or injections needed.
- Pressure Resistant: Performs under high hydrostatic pressure in tunnels, basements, and water tanks.
- Easy to Install: Fits into joints without special tools or adhesives.
- Flexible: Absorbs minor movements and expansions.
- Durable: Withstands aging, weather, and stress for long service life.
- Resistant: Unaffected by common chemicals and biological agents, provides long-lasting, maintenance-free protection.
- Safe: Non-toxic, recyclable, and suitable for potable water.
Applications
- Construction Joints: Seals joints between concrete pours in foundations, basements, and walls.
- Water Retention Systems: For dams, reservoirs, and tanks under high water pressure.
- Expansion Joints: Handles movement in buildings and bridges from thermal or load shifts.
- Tunnels & Underground Works: Provides waterproofing against high water pressure.
- Precast Panels: Ensures watertight junctions in precast structures.
- Sewage & Wastewater: Prevents leakage and contamination in pipelines and treatment plants.
Design Elements That Serve Critical Roles
- Flexible Sheet Format - Easy to install over curves, slope, walls, or joints
- Multiple Thickness Grades (0.07 to 2.0 mm) - Thinner sheets - internal use and thicker sheets - aggressive environments (e.g., basements and tanks)
- Visual Crack Inspection for Cold Resistance - Ensures the sheet will not fail under thermal stress
- Roll Format - Provides seamless waterproofing over large areas with minimal joints
- Joint-welding Compatibility - Allows for secure overlap joining via heat welding, ensuring 100% water tightness at seams
Maruti Hydrophilic Swell Bar can be supplied with customer labels and required color. Different types and dimensions available.
Storage: store in a cool and dry place on plates in the original packing, prevent from moisture to avoid premature swelling
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