What certifications does the product have?

ISO 9001/14001/45001, RoHS compliant, CE (EN 681-3), and CNAS-accredited type inspection (Report A34915F202510224).

What environments is it suitable for and what is the service life?

Tunnels, subways, culverts, basements, and pipe penetrations; acid and alkali resistant with 50+ year permanent sealing performance.

How fast does it swell and can the swelling be delayed?

Initial swelling within 30 minutes; delayed-swelling coating available that delays expansion by 2-4 hours for concrete pouring.

Bentonite Swellable Rubber Waterstop High-Efficiency Hydrophilic Expanding Waterstop Strip

Name: Bentonite Swellable Rubber Waterstop High-Efficiency Hydrophilic Expanding Waterstop Strip
Brand: Hengshui Jingtong Rubber Co., Ltd.
SKU: 1979868295

Hebei, ChinaHengshui Jingtong Rubber Co., Ltd.

US$0.70

2,000-19,999 Meters

US$0.68

20,000+ Meters

Sample price:US$1.00/meter.Request sample

Product profile

Customization

Available

After-sales Service

5 Year

Application

Indoor, Outdoor, Tunnel, Dam, Basement, Underground Concrete Joint,

Model NO.

JT19

Certification

CE, ISO

Shape

Rectangle

Size

10X20mm, 15X20mm, 20X25mm, 20X30mm, 30X40mm,Custom

Volume Expansion

150%-600%

Hardness (Shore a)

≥42±7

Engineering Solution Capability

Product Design and Production

Tensile Strength

≥3.5MPa

Elongation at Break

≥450%

Working Temperature

-40-120 Celsius

Color

Red,Blue,Yellow,Black,Customized

Transport Package

Pallet

Specification

20x15mm

Trademark

HengJingGong

Origin

China

HS Code

4008290000

Production Capacity

10000m/Day

Key features

Hydrophilic Rubber Core: Hydrophilic rubber swells 150%-600% on contact, sealing construction joints under pressure.

CE, RoHS & CNAS Certified: CE EN 681, RoHS and CNAS certified, a rare combo among hydrophilic strip suppliers.

Stronger Than Bentonite: Higher sealing pressure than bentonite, ideal for dynamic and moving construction joints.

Tunnel & Basement Use: Suits tunnel linings, pipe penetrations and basements needing permanent waterproofing.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceExperienced TeamPatents Awarded

Hengshui Jingtong Rubber Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 Years CertifiedNearest Port: Tianjin Port,Qingdao PortAverage Response Time: ≤5.89h

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory and limited company with associated companies, offering a broad range of bridge, rubber, sealing, and customized products. It reports 10 production lines, defined product output, six to ten quality-control staff, and export experience of 10 years, with exports representing 41%–50% of total sales. The supplier provides extensive customization and ODM services and reports new products during the past year. However, no supplier-management-system certification is reported, and its service-capability procedures lack written records for assessment and corrective/preventive actions. Complaint handling has a clear procedure with follow-up records. The supplier has no overseas warehouse, showroom, agent or branch, or offline trade-show participation. Financial credibility cannot be assessed from the available non-financial information.

Supplier typeThe supplier is explicitly classified as a factory and limited company, with associated companies and manufacturing as the industry of those companies. This supports direct manufacturing status rather than a trading-only profile.

CertificationsThe supplier-management-system certification field is explicitly reported as NIL. No certification evidence is provided for this field, indicating a stated lack of supplier-management-system certification.

After-Sales capabilityThe supplier has a clear customer-complaint handling procedure with follow-up records, which is positive evidence for after-sales issue management. However, assessment and corrective/preventive-action procedures have no records, so the service system is only partially documented.

R&D capabilityThe supplier reports new products during the past year and provides ODM services, indicating active product-development capability. However, it reports no available SDK, which limits evidence of software-development or integration capability.

Production capacityThe supplier is a factory operating 10 production lines, with six to ten quality-control staff and stated output across rubber culvert balloons, seismic isolation bearings, waterstops, and expansion joints. It also reports inspection instructions that are uniformly followed, supporting established production and quality-control operations.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization, including made-to-order products with complex profiles and different materials. It also provides ODM services, demonstrating broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands, which is direct evidence of at least one customer-case category. No customer names, project details, volumes, or independently verifiable case documentation are provided.