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Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip

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  • Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
  • Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
  • Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
  • Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
  • Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
  • Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
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  • Overview
  • Product Description
  • Specification
  • Installation
  • Product Details
  • Packaging & Shipping
  • Company Profile
  • FAQ
Overview

Basic Info.

Model NO.
JT7875GH
Certification
CE, ISO
Shape
Square/Rectangeler/Circle
Name
Hydrophilic Waterstop Strip
Color Choice
Black/Red
Leading Time
Within 7 Days
Expansion
150%,250%,300%,400%
MOQ
100 Meters
Transport Package
Roll in Cartoon Box and on Pallet
Specification
CE\\ISO
Trademark
HengJingGong
Origin
China
HS Code
40169090
Production Capacity
20000m Per Year

Packaging & Delivery

Package Size
35.00cm * 35.00cm * 25.00cm
Package Gross Weight
10.000kg

Product Description

Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Product Description
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
    Hydrophilic waterstop is a high-performance, water-swelling sealing strip made from hydrophilic rubber and inorganic water-absorbing compounds; upon contact with moisture it rapidly expands to fill concrete joints and cracks, achieving a "seal-by-water" effect. Widely used in construction, subway tunnels, underground galleries, pools and other wet environments, it offers high swelling ratio, self-healing capability, easy installation, environmental safety and long-term durability, and is available in putty, molded, self-adhesive and reinforced-mesh types in various sizes.

    Hydrophilic waterstop strip is a water-swellable waterproof sealing material installed in concrete construction joints and deformation joints. It maintains original size when dry and rapidly expands 2-3 times upon water contact, automatically filling gaps to form a dense waterproof barrier that prevents water infiltration. Ideal for underground projects and tunnels with long-term water exposure.
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Functions
*Active Water Stopping: Automatically expands upon water contact to fill gaps
*Sealing: Post-expansion contact pressure ≥0.2MPa for effective water blocking
*Deformation Adaptation: Follows structural micro-movement while maintaining seal
*Self-healing: Minor damage recovers functionality after water contact
*Easy Installation: Pre-formed strips for quick installation
Product Features
*High Expansion Ratio: Volume expansion 200%-300%
*Adjustable Swelling Rate: Fast or slow swelling options per construction needs
*Strong Water Pressure Resistance: Withstands 0.6MPa water pressure without leakage
*Good Durability: Anti-aging with stable long-term performance
*Eco-friendly: Compliant with drinking water contact standards
Manufacturing Process
Key manufacturing processes include:
*Internal Mixing: Precise internal mixing of rubber, hydrophilic components, and various additives according to formulations.
*Compounding: Uniform mixing of all components through compounding processes.
*Extrusion: Formation of strips with square or other specified cross-sections from compounded rubber material.
*Vulcanization (for product type): Product-type waterstop strips undergo vulcanization to impart better elasticity and physical strength.
Product Advantages
    *Easy Installation: Self-adhesive or nail-fixed, no complex process required
    *Instant Effect: Expands on water contact for immediate waterproofing
    *Cost Effective: Economical pricing with high performance ratio
    *Strong Adaptability: Can fill irregular gaps
    *Fast Delivery: Regular specifications in stock
    *Flexible Customization: Customizable size and expansion ratio
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Specification
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Physical properties
PZ-150
PZ-250
PZ-400
PZ-600
Hardness (shore A)
42±7
42±7
45±7
48±7
Tensile strength
3.5 Mpa (min)
3.5 Mpa (min)
3 Mpa (min)
3 Mpa (min)
Elongation
450% (min)
450% (min)
350% (min)
350% (min)
Expansion rate
150%
250%
400%
600%
Repeated water immersion test
Tensile strength
3 Mpa (min)
3 Mpa (min)
2 Mpa (min)
2 Mpa (min)
Elongation
350% (min)
350% (min)
250% (min)
250% (min)
Expansion rate
150%
250%
300%
500%
Low temperature bending (-20°C*2h)
No crack
No crack
No crack
No crack
Installation
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Working Principle of Hydrophilic Waterstop Strip
Hydrophilic waterstop strips maintain a flexible, strip-like form when dry. Upon contact with water, they rapidly expand in volume (typically by 150% to 600%, with some products reaching up to 1000%). They compress to fill voids within concrete joints, forming a dense waterproof barrier that prevents water penetration.
Product Details
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Packaging & Shipping
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Company Profile
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
Hengshui Jingtong Rubber Co., Ltd., located in Hebei Province's Hengshui City, is a professional manufacturer of engineering rubber products. Our product range includes bridge bearings, expansion joints, water stop strips, water stop belts, inflatable cores, building deformation joint device and water plugs, which are widely used in bridge, tunnel, water conservancy, and power engineering projects. The company boasts advanced technology and mature processes to ensure reliable product quality.
We have a professional technical team and a comprehensive after-sales service system to ensure customers receive high-cost-performance products and attentive service. Hengshui Jingtong Rubber Co., Ltd. is committed to continuous innovation to meet market demands and looks forward to esta blishing long-term cooperative relationships with customers from both domestic and international markets.
Swellable Water Stop Rubber Sealing Strip Water Swellable Hydrophilic Waterstop Strip
FAQ
Q1:What is the expansion rate of the water stop?
A:The expansion rate ranges from 150% to 600% depending on the specific model selected.
Q2:How fast does it swell?
A:Initial swelling begins within minutes, full expansion in 24-48 hours.
Q3: What water pressure can it withstand?
A:Withstands hydrostatic pressure up to 2.5 MPa (25 bar) once fully expanded and confined within the joint.
Q4: Does it have self-healing properties if damaged?
A:Yes, bentonite re-swells upon re-wetting, self-sealing minor cracks or punctures automatically.
Q5: What are the available sizes?
A:Standard sizes include 10x20mm, 15x20mm, 20x25mm, 20x30mm, and 30x40mm.
Q6: How is the bentonite waterstop strip installed?
A:Simply fix with adhesive backing or nails to the concrete joint surface; no heat, welding, or special tools required.
Q7: Can the product be customized?
A:Yes, we offer full customization including size, color, shape (P-type, round), and expansion ratio.

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