Expansion Rate 150%-300% Hydrophilic Swelling Water Stop Expansion Bentonite Rubber Waterstop

• Customization: Available
• After-sales Service: Installation Guide
• Application: Indoor, Outdoor
• Model NO.: All types
• Certification: CE, ISO
• Shape: Strip
• Production Process: Extrusion and Vulcanization
• Width: 10mm - 50mm
• Volume Expansion Rate: 150% - 500%
• Type: Waterproof Roll Material
• Ceiling Tile Shape: Strip
• Material: Rubber
• Function: Anti-Static, Fireproof, Heat Insulation,
• Color: Black
• Usage: Outdoor, Indoor
• Warranty: 2 Years After Leaving The Factory
• Ceiling Tile Type: Bentonite
• Surface Treatment: Rolling
• Transport Package: Rolling in The Box, on The Pallet with PE Film
• Specification: 40*40*20cm carton.
• Trademark: HengJingGong
• Origin: Made in China
• HS Code: 4008290000
• Production Capacity: 1000000m / Month
• Package Size: 30.00cm * 30.00cm * 3.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

Solutions To Water Containment Needs - Bentonite Waterstops
Bentonite waterstop is a kind of hydrophilic water sealing product coming with incomparable durability and higher water absorption no less than 300%. Unlike traditional clay based waterstops, this one utilizes rubber as base material to form a controlled, moisture active sealant - that means the bentonite waterstop will not expand to point losing much of integrity even being washed away by water during continually expansion.

Material

The waterstop strip is primarily composed of multiple composite materials:

    *Rubber Base Material: Uses natural rubber, butyl rubber, or synthetic rubber as the base material, providing elasticity and durability.

    *Hydrophilic Components: Incorporates inorganic materials, organic water-absorbing polymers, and high-quality bentonite that absorb significant amounts of water upon contact, triggering volume expansion.

    *Additives: Supplemented with high-viscosity resins and other special additives, manufactured through internal mixing and compounding processes to ensure self-adhesiveness and stable physical properties.

Function

*Active Sealing: Expands in volume upon water contact, actively filling and blocking all irregular surfaces, cavities, and gaps.
*Continuous Impermeability: Generates substantial contact pressure after expansion, resisting certain water pressure to achieve reliable water blockage.
*Self-healing Capability: Continues to absorb water and expand to seal new micro-cracks caused by foundation deformation or settlement, enhancing waterproofing effectiveness.
*Displacement Adaptation: Maintains water-stopping functionality through its expansion characteristics even when joint displacement exceeds the recovery range of ordinary elastic materials.

Product Features
*High-Efficiency Waterproofing: Implements "water-stopping" mechanism with reliable leakage prevention.
*Durability and Stability: Primarily composed of inorganic materials with excellent aging resistance and corrosion resistance, ensuring long service life.
*Environmental Safety: Free from harmful substances, classified as an environmentally friendly product.

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.

Types:

Specification

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

Product Details

Customer Visit

Packaging & Shipping

Company Profile

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.

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

7. Do we have quality guarantee?
Of Course!
--from raw material to manufacturing, we have rigid quality control.
--before delivery, we have strict quality inspection.
--Third party inspection is also available at your request.
--We also have ISO, CE certificates.