Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction

Product Details
Customization: Available
After-sales Service: Technical Guidance
Application: Outdoor
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  • Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
  • Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
  • Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
  • Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
  • Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
  • Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
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  • Overview
  • Product Description
  • Specification
  • Installation
  • Product Details
  • Packaging & Shipping
  • Company Profile
  • FAQ
Overview

Basic Info.

Model NO.
JT-BW19
Certification
CE, ISO
Shape
Strip
Size
10X20mm, 15X20mm, 20X25mm, 20X30mm, 30X40mm
Type
Roofing and Waterproofing
Colour
Black/Red/Blue/Customized
Expansion Rate
150%-600%
Surface Treatment
Film Coated
Tensile Strength(MPa)
≥22
Density(Mg/M3)
1.1-1.3
Elongation at Break(%)
400
Working Temperature
-40-120 Celsius
Hardness
30-90 Shore
Transport Package
According to Customer Needs
Specification
Customized
Trademark
HengJingGong
Origin
China

Packaging & Delivery

Package Size
35.00cm * 35.00cm * 2.50cm
Package Gross Weight
20.000kg

Product Description

Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Product Description
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
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.
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Material
    Made of modified natural rubber or polyurethane base with superabsorbent polymer (SAP) and additives. SAP absorption ratio ≥200% with no exudates after expansion. Non-toxic and eco-friendly, compliant with building material hygiene standards.
Manufacturing Process
Raw material mixing → Extrusion molding → Vulcanization (or curing) → Water absorption testing → Packaging. Continuous extrusion process ensures dimensional stability and batch production.
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
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Sizes:
*Width: 10 mm, 15 mm, 20 mm, 30 mm, 40 mm, 50 mm.
*Height: 10 mm, 20 mm, 30 mm, 25 mm, 40 mm, 50 mm, 60 mm.
*Color: black, red and other colors also can be customized.
*Note: Other specifications also can be customized.
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
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
Properties:
Physical properties
Test method
Result
Color
-
Black
Specific gravity
ASTM D-71
1.35 ± 5%
Hydrocarbon content
ASTM D-4
47% (min)
Volatile matter
ASTM D-6
1% (max)
Penetration, cone at 77°F, 150 gm, 5 sec.
ASTM D-217
40 mm ± 5%
Application temperature
-
-10°F to 125°F
Service temperature
-
-30°F to 180°F
Other bentonite waterstops for specific applications are also available in our company as shown follow:
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Bentonite waterstop with expanded metal
Bentonite waterstop with expanded metal is a new type water sealing product. The added expanded steel mesh (or nylon mesh as your request) effectively enhances the tensile strength of the waterstop and improves the overall construction quality.
Bentonite waterstop with grouting pipe
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
The perfect match of bentonite waterstops and grouting pipes extremely improve the performance of the water-proofing capability. Once the leakage of water occurs, you can plug the crack through pouring chemical grout into the pipe, instead of slotting and drilling a hole on the construction surface.
Specification
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
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
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Product Details
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Applications
Widely used in various underground and hydraulic concrete structures:
    *Underground Structures: Basements, subway stations, civil air defense facilities, tunnels.
    *Water Conservancy and Treatment: Reservoir dams, sewage treatment tanks, swimming pools.
    *Municipal and Transportation: Utility tunnels, bridges, culverts.
    *Industrial and Civil Buildings: Sealing of construction joints, post-cast strips, pipe penetrations in concrete structures.
Packaging & Shipping
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Company Profile
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
    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.
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
Hydrophilic Butyl Rubber Waterstop Water Swelling Bentonite Strip for Tunnel Construction
FAQ
1.When can I get the quotation?
A:We usually quote within 24 hours after we get your inquiry.
2.How long can I expect to get the sample?
A:The samples will be ready for delivery in 5-10days. The samples will be sent to you via express and arrive in 5-7days.
3.How long is the delivery time
A:Usually 10-15 days, depending on the quantity purchased.
4.How can I get a sample to check your quality?
A:After negotiating the price, we will provide you with samples for testing.
5.what can you buy from us?
Bridge Bearing Pad,Seismic isolation bearing,Expansion Joint,Rubber Inflatable Airbag,Waterstop Belt/Strip,Steel Expansion Joint,Butyl Tape
6.What's payment term?
A:T/T, L/C at sight, Western Union

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