Hydrophilic Bentonite Water Stop Strip Concrete Joint Swellable Waterstop

Product Description

Product Description

    Bentonite waterstop strip is a strip-shaped waterproofing material made from bentonite as the main ingredient, mixed with rubber and additives. It expands 2-3 times in volume upon water contact, automatically filling gaps in concrete construction joints and deformation joints to form a dense waterproof barrier. The product is eco-friendly and non-toxic, providing an economical and efficient choice for underground waterproofing projects.

Functions
1.Active water stopping: Automatically expands upon water contact to fill gaps
2.Sealing: Post-expansion contact pressure ≥0.2MPa, resistant to water pressure 0.6MPa
3.Deformation adaptation: Accommodates joint deformation of ±25mm
4.Self-healing: Minor damage recovers functionality after water contact
5.Easy construction: Pre-formed strips, no special equipment required

Product Features

1.High expansion ratio: Volume expansion 200%-300%
2.Adjustable swelling rate: Fast or slow swelling options per working conditions
3.Excellent durability: Anti-aging with 50-year service life
4.Eco-friendly: Non-toxic and harmless, meets drinking water standards
5.Strong adaptability: Can fill irregular gaps

Specification

Bentonite Waterstop Strip Parameters
NO.	ITEM	Result
		PN-150	PN-220	PN-300
1	Expansion rate/%≥	150	220	300
2	Flow at High Temperature (80℃×5h)	No fiow	No fiow	No fiow
3	Low temperature test (-20℃×5h)	No crack	No crack	No crack
4	Peel strength	0.05MPa
5	Shear Strength	1.0MPa
6	Hydrostatic Pressure	>70m

Product Details

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.What is the expansion rate of the water stop strip?
A:The product expands 200%-300% in volume upon water contact, with specific models offering expansion rates of 150%, 220%, or 300%.

2.Is the bentonite water stop strip safe for drinking water projects?

A:Yes, the product is eco-friendly, non-toxic, and harmless, meeting drinking water standards.

3.What is the expected service life of the product?

A:The product features excellent durability with an estimated 50-year service life due to its anti-aging properties.

4.Can the product size and color be customized?

A:Yes, the product offers customizable sizes (e.g., 10X20mm to 30X40mm) and customizable colors to suit specific requirements.

5.How does the product handle minor damage?

A:It has a self-healing function where minor damage recovers its functionality automatically upon contact with water.

6.What certifications does the product hold?

A:The product is certified with CE, ISO, RoHS, SGS, and CNAS, ensuring compliance with international standards.

7.What after-sales service is provided?

A:We provide online guidance for installation and comprehensive after-sales support through a professional technical team.