Do you offer free samples?

Yes, free samples are available for customization requests.

What is the minimum order quantity?

The minimum order quantity is 1 unit.

What payment methods do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Bentonite Rubber Swelling Strip Expanding Waterstop Strip

Name: Bentonite Rubber Swelling Strip Expanding Waterstop Strip
Brand: SHENZHOU CITY SANSHI RUBBER CO., LTD.
SKU: 2026321732

Hebei, ChinaSHENZHOU CITY SANSHI RUBBER CO., LTD.

US$1.00

50 Meters

Sample price:US$2.00/meter.Request sample

Product profile

Customization

Available

Certification

ISO, SGS

Thickness

OEM

Model NO.

STRIP

Sample

Free

Logo

Free

Packing

OEM

Size

OEM

Type

Waterproof Roll Material

Ceiling Tile Shape

Strip

Material

Rubber

Surface Treatment

Roll Coated

Function

Anti-static, Fireproof, Heat Insulation, Sound-Absorbing, Waterproof

Usage

Outdoor, Indoor, Engineering

After-sales Service

Available

Warranty

Available

Ceiling Tile Type

OEM

Color

OEM

Transport Package

OEM

Trademark

OEM/ODM

Origin

China

HS Code

4008290000

Production Capacity

100000 Meters Per Month

Key features

High Expansion Rate: Expands up to 400% of original volume to seal cracks and voids effectively.

Superior Waterproofing: Creates compression seal in concrete joints preventing water ingress.

Natural Material Safety: Made from natural bentonite clay, suitable for potable water applications.

Customizable Dimensions: Size and thickness are fully customizable to meet specific project needs.

Durable Performance: Resistant to high temperatures, low temperatures, and chemical aging.

Easy Installation: Simple to glue or nail into construction joints for quick application.

OEM Manufacturing: Supports full customization including logo, packing, and product design.

Versatile Applications: Ideal for pipe penetrations, reservoirs, and civil engineering joints.

Company profile

Fast DeliveryCustomization from SamplesFull CustomizationPrivate Mold

SHENZHOU CITY SANSHI 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: 9 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤4.14h

AI-Powered supplier vetting

SummarySHENZHOU CITY SANSHI RUBBER CO., LTD. is a China-based limited company established in 2014 with 15 employees. It identifies as a professional technical supplier, provides 3D software design and multiple customization options, and supports OEM manufacturing with more than 6,000 molds. Export sales account for 71%–90%, and the supplier has exported for nine years. CE certification is reported. However, the supplier lacks an available SDK, valid manufacturing-capacity contracts with its factory and related subcontractors, inventory, overseas warehouses, overseas agents or branches, and overseas showrooms. Quality assurance, corrective-action, complaint-handling, and supplier-assessment procedures are not documented, although raw-material traceability is available. No explicit customer cases are provided.

Supplier typeThe supplier is a China-based limited company operating in Hebei, established in 2014, with 15 employees. It describes itself as an OEM manufacturer and reports more than 6,000 molds, indicating a manufacturing-oriented rubber supplier.

CertificationsThe supplier reports CE certification capability. The same information also shows no factory environmental impact assessment report, but that does not negate the stated certification.

After-Sales capabilityThe supplier reports no overseas agents or branches, no overseas showroom, and no overseas warehouse. It also has no written procedures or records for effective customer-complaint handling, indicating weak documented after-sales support.

R&D capabilityThe supplier is identified as a professional technical supplier and provides 3D software design and flexible customization services. It also reports more than 6,000 molds, but no available SDK is reported; the evidence supports design and tooling capability rather than a complete software-development capability.

Production capacityOEM manufacturing support, more than 6,000 molds, export experience of nine years, and lead times within 15 working days in both peak and off-season support production capability. Nevertheless, the supplier reports no valid manufacturing-capacity contract with its factory and related subcontractors, no inventory capability, and no written supplier-capability assessment procedures.

Customization capabilityThe supplier explicitly offers customization from samples, full customization, minor customization, flexible customization, and customization from designs. Its OEM support and extensive mold inventory further support the stated ability to handle customized orders.

Product Q&A

Q:What is the expansion rate of the waterstop strip?

The strip can expand up to 16 times its dry volume, with specific models offering expansion rates of 150%, 220%, 300%, or up to 400%.

Q:Is the product suitable for drinking water?

Yes, since bentonite is a natural material, it is a popular choice for potable water applications.

Q:Can the size and thickness be customized?

Yes, both size and thickness are OEM options available to meet your specific requirements.

Q:What are the main differences between PN and PZ types?

PN type is made without vulcanization molding and is chosen for expansion rates under 350%, while PZ type uses vulcanization molding and is suitable for rates over 330%.

Q:How long does it take to receive a reply to an inquiry?

Inquiries about our products are typically replied to within 12 hours.