We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Water-stopping material.
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Water-stopping material Product List and Ranking from 14 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Water-stopping material Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. 大嘉産業 産業資材事業部 Tokyo//Trading company/Wholesale
  2. クニミネ工業 Tokyo//Mining
  3. 保土谷建材 本社 Tokyo//Manufacturing and processing contract
  4. 共和ゴム Osaka//others
  5. 5 王子ゴム化成 Yamaguchi//Rubber products
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Water-stopping material Product ranking

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. Steel pipe sheet pile joint water stop work "Grout Jacket" 大嘉産業 産業資材事業部
  2. Bentonite external type water stop material Kuniseal for external use BT クニミネ工業
  3. Acrylic resin-based high-pressure injection waterproofing system "Bandeflexin" 保土谷建材 本社
  4. Water-stopping material "Water-Expandable Non-Woven Fabric" 共和ゴム
  5. 4 Water-expanding waterproofing material "Aqua Kelsey Sealant" 王子ゴム化成

Water-stopping material Product List

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Waterproofing agent for concrete joint treatment "Naru Stop" *Free pamphlets available.

Waterproofing agent for concrete joint treatment "Naru Stop" *Free pamphlets available.

"Foundation waterproofing" to prevent leaks, pests, and mold under the floor! A waterproofing agent that is non-toxic and non-flammable, allowing for seamless application on any substrate.

The water stop agent "Narustop" provided by Naruse Chemical is a caulking type water stop agent for concrete joints. It adheres strongly to concrete and waterproofs and seals the concrete joint interface. The application is also easy, and it demonstrates excellent effectiveness in preventing water leakage accidents. ～ A free booklet that explains "foundation waterproofing" in detail is currently available! ～ It provides an easy-to-understand explanation of "foundation waterproofing" for those considering purchasing a new house or single-family home. If you would like the booklet, please contact us and specify "booklet request." * A manual for single-family foundation construction is also available for download in the catalog. * For more details, please download the catalog or contact us directly.

  • Repair Agent

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Water-based asphalt joint sealing agent "Naru Stop"

Water-based asphalt joint sealing agent "Naru Stop"

It's a paste-like joint sealing agent that can be easily applied without gaps to any substrate!

"Nalstop" is a joint water stop agent that utilizes the adhesive properties and waterproofing of water-based asphalt emulsion. Since it contains no organic solvents, it is non-toxic and non-flammable, allowing for seamless application. It does not expand, so it will not damage the concrete. 【Features】 ■ High-viscosity asphalt water-based emulsion ■ Can be applied to uneven surfaces (chipped surfaces), cast surfaces, and damp substrates ■ Strong adhesion to existing concrete and newly poured concrete ■ Easy and cost-effective to apply ■ Seamless application possible *For more details, please refer to the PDF document or feel free to contact us.

  • others

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Water-stopping material "Water-Expandable Non-Woven Fabric"

Water-stopping material "Water-Expandable Non-Woven Fabric"

Absorbs water and expands instantly! Highly effective in deodorizing ammonia, and can be reused repeatedly by drying in the sun.

"Water-Expanding Non-Woven Fabric" is a waterproof material that incorporates high water-absorbent and high moisture-absorbing fibers into non-woven fabric (polyester fibers) to provide water absorption capabilities. It has approximately twice the moisture absorption capacity of silica gel and quickly absorbs water due to its large surface area. Even under pressure, it does not easily release water. Additionally, it has a high deodorizing effect against ammonia, can be reused through sun-drying, and does not experience significant performance degradation even after repeated water absorption and moisture absorption. 【Features】 ■ High water absorption ■ High moisture absorption ■ Flame retardant ■ Heat resistant ■ Reusable *For more details, please refer to the PDF document or feel free to contact us.

  • Pipe Fittings
  • Sealing

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Waterstop material for foundation joints of detached houses 'W Stopper'

Waterstop material for foundation joints of detached houses 'W Stopper'

Easy to install, with strong adhesion and water-stopping ability! Ideal for the two-layer application of the base and the vertical rise.

The "W Stopper" is a joint water stop material suitable for the foundations of detached houses, designed for two applications: base and startup. It is easy to apply, with strong adhesion and water-stopping capabilities. Being in paste form, it fills the gaps in the ribs of the width-stopping hardware. As a high-viscosity asphalt water-based emulsion, it can be applied to uneven surfaces while maintaining its paste consistency. 【Features】 ■ Easy to apply ■ Strong adhesion and water-stopping capabilities ■ Dissolves and adheres to freshly poured concrete ■ Fills the gaps in the ribs of the width-stopping hardware due to its paste form ■ Can be applied to uneven surfaces while maintaining paste consistency ■ Penetrates and adheres to existing concrete *For more details, please refer to the PDF document or feel free to contact us.

  • others
  • Other work tools

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Separator Bentonite Water Stop Material Kuni-Seal

Separator Bentonite Water Stop Material Kuni-Seal

This is a water-stopping material that can be easily installed. It can withstand water pressure equivalent to 30 meters underground.

Simply insert it into the separator and cut it, then crimp the ends. Due to its good plasticity, it is easy to attach to the separator and can easily pass through the threaded part of the separator. It can withstand water pressure equivalent to 30 meters underground. ● For more details, please download the catalog or contact us.

  • Other consumables

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Modified bentonite-based separator sealing material "Gel Ring"

Modified bentonite-based separator sealing material "Gel Ring"

Waterproofing material for the pre-insertion method to be inserted into the separator before concrete placement.

"Gel Ring" is a water stop material used for advanced construction methods that prevents the flow of water by causing the modified bentonite inside the gel ring to swell and gel in response to infiltrating water. During the installation of formwork, this product is inserted into the separator, allowing for water stopping at the separator section within the concrete. 【Product Details】 ■ Outer Diameter: 25.0Φ ■ Height: 11–12mm ■ Material (Outer): Polyethylene, injection molded product ■ Material (Inner) - Semi-paste bentonite - Swelling capacity: 30ml/2g - pH: 9.5–11.0 - Weight: 7±1g *For more details, please download the PDF or feel free to contact us.

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Concrete joint bentonite-based water stop material "Gelfit Rope"

Concrete joint bentonite-based water stop material "Gelfit Rope"

An environmentally friendly inorganic swelling water-stopping material that controls water with water!

"Gelfit Rope" is a waterproofing material for concrete joints that utilizes the water-absorbent gelation of modified and refined bentonite. As a natural inorganic mineral, it contains no harmful substances and does not deteriorate over time. Additionally, it can be applied for post-construction leakage repairs. 【Features】 ■ Waterproofing Effect - Packing effect - Clogging effect - Double waterproofing ■ Workability - No welding or adhesive required - Easy temporary fixing - No substrate drying or precision requirements, etc. *For more details, please download the PDF or feel free to contact us.

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Ultra-fine particle impregnation concrete modification waterproofing agent "Sanmaterra Aqua EX"

Ultra-fine particle impregnation concrete modification waterproofing agent "Sanmaterra Aqua EX"

Prevention of crack recurrence and effective excess water discharge! Reforming the depths of cracks with a specially formulated silicate.

"Sanmatera Aqua EX" is a super-fine particle impregnating concrete modification waterproofing agent that stops water leakage with a powerful void-filling effect through pozzolanic reaction. The main component, a specially formulated ultra-fine silicate, deeply penetrates the concrete and chemically reacts with unhydrated calcium hydroxide to produce insoluble and viscous C-S-H gel, which fills the capillary voids within the concrete and densifies it. It prevents the recurrence of cracks and provides a water-stopping effect. 【Features】 ■ Modifies the depths of cracks with a specially formulated silicate ■ Stops water leakage with a powerful void-filling effect through pozzolanic reaction ■ Imparts alkalinity to carbonated concrete ■ After application, the concrete surface becomes hydrophilic, enhancing the adhesion of paints and plaster. *For more details, please refer to the PDF document or feel free to contact us.

  • Other consumables

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Mold Stop Water Agent "FF Sealer 300"

Mold Stop Water Agent "FF Sealer 300"

Heat resistance temperature of 400°C. Easy application with paste-like room temperature curing. Ideal for sealing and filling gaps in the cooling water contact surfaces of molds due to its rubber-like curing.

As a sealing agent for the cooling water fitting part of molds, it has high heat resistance, water resistance, sealing properties, and low adhesion. Sealing agents for the cooling water fitting part of molds require heat resistance, water resistance, sealing properties, and low adhesion, so there are hardly any commercially available products that can be adapted, and various substitutes have been used, but they have not provided sufficient performance. "FF Sealer 300" is a product designed to address such customer concerns, completely preventing the intrusion of high-temperature cooling water pipes and surrounding water, while maintaining high performance over a long period. Additionally, due to its low adhesion, it can be easily removed when taking off the fitting part. 【Features】 - Maintains performance even at high temperatures above 400°C for extended periods. - Exhibits long-lasting water resistance and heat water resistance. - The formed film does not adhere, making removal easy. - This product cures at room temperature and does not degrade due to heat. - With a very high solid content, it forms a dense layer that provides sufficient sealing effect. - This product is in a paste form, making application easy and allowing for a thin coating.

  • Other molds

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Instant hardening water stop material - Stop it now! ~ Concrete leak/water leak rapid-setting water stop material ~

Instant hardening water stop material - Stop it now! ~ Concrete leak/water leak rapid-setting water stop material ~

Unexpected "leakage" can be stopped immediately! One box for the site, one box for the home, one box for each household, stop it immediately. A cement-based quick-setting water-stopping material. Now available in an easy-to-use recycled bottle!

TometaroⓇ Series Instant Hardening Water Stop Material "Soku-Tomeru Instant Seal" ■ Easy Application Simply grab the powder and press it with your palm against the leak for about 10 to 30 seconds. It will react with water and stop the leak. ■ Quick Water Stopping A great product that allows you to instantly "stop" the leak on the spot when you're in trouble! ■ Comes in Recyclable Bottles Environmentally friendly. Unlike large bags, there is less product waste. *For more details, please request a catalog by Email or download the PDF data from the "IPROS site"。

  • Company：EPJ
  • Price：Less than 10,000 yen
  • Other polymer materials
  • Repair Agent
  • Other safety and hygiene products

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Water-expanding waterproofing material "Aqua Kelsey Sealant"

Water-expanding waterproofing material "Aqua Kelsey Sealant"

Introducing our water-swelling rubber series, including seal materials and packing materials for segments!

"AquaKell Sealer" is a waterproofing material that excels in durability, weather resistance, and heat resistance, making it suitable for construction work in deep and high water pressure environments. We offer a lineup of products including the segment sealant "AquaKell Sealer W," which is suitable for shield tunnel construction, and the waterproofing material "AquaKell 100" for concrete joints. Additionally, we provide waterproofing materials for sewer pipes such as "Rubber Rings for Hume Pipes" and "Embedded Color Propulsion Waterproofing Material." 【Features】 <AquaKell Sealer> - Made primarily from CR-type rubber and uses a special high water-absorbent resin with high gel strength - Excellent weather resistance and durability - As a continuously vulcanized rubber product, it exhibits high physical properties and stable quality *For more details, please refer to the PDF materials or feel free to contact us.

  • Rubber

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Water-based asphalt joint sealing agent "Naru Stop"

Water-based asphalt joint sealing agent "Naru Stop"

Water leakage prevention for concrete construction joint! It is very economical as it can be applied for 1 to 3 meters with just one unit.

"NARUSTOP" is an economical and easy-to-use cartridge-type water-based asphalt joint sealing agent. Unlike traditional water stop board methods, it can be applied independently, significantly improving work efficiency. As a paste-type sealing material, it thoroughly penetrates the fine irregularities of existing concrete. 【Features】 ■ Long application distance per unit, making it economical ■ Can be used independently, greatly reducing construction time ■ Effectively guards against water intrusion through chemical reactions with concrete ■ Can be applied outside of rebar, providing expected rust prevention for the rebar *For more details, please refer to the PDF materials or feel free to contact us. *The catalog is a digest version. If you would like the full materials, please contact us directly for mailing.

  • Repair Agent

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Bentonite external type water stop material Kuniseal for external use BT

Bentonite external type water stop material Kuniseal for external use BT

It is possible to achieve high-performance water stopping with an external type bentonite material. It is a lightweight material that allows for easy work with nailing.

Kuninmine Industry's new product for the construction and civil engineering industry is "Kuniseal," a bentonite waterproofing material that utilizes the properties of natural clay mineral bentonite. Since bentonite is an inorganic clay mineral, it maintains its performance without degradation for a semi-permanent period, continuously demonstrating excellent waterproofing effects. Kuniseal BT is an external type of waterproofing material. ● For more details, please download the catalog or contact us.

  • Other consumables

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Natural Na-type bentonite-based water stop material

Natural Na-type bentonite-based water stop material

Exhibits water-stopping effect due to self-sealing properties! The effect lasts semi-permanently.

Our company conducts research and development leveraging the advantages of natural sodium-type bentonite, producing various specifications of water-swelling type bentonite-based water stop materials. These water stop materials not only possess the excellent water-swelling properties of natural sodium-type bentonite but have also been improved through special physical and chemical treatments, providing them with rubber-like elasticity. When used under certain conditions, they exhibit perfect water stop functionality. 【Features】 ■ Easy and quick installation, can be installed by one person ■ Easy to cut and join, no need for fusion machines or special parts for joining, allowing for simple installation ■ Good overall cost performance ■ Can be installed regardless of cold or warm climates, and can be used on complex and irregular surfaces ■ Proven as an ideal water stop material for construction joints in domestic and international examples *For more details, please download the PDF or feel free to contact us.

  • Other consumables

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Non-woven fabric product example: Concrete joint water stop material

Non-woven fabric product example: Concrete joint water stop material

We have developed a component to stop water leakage at the concrete joint in construction materials.

We would like to introduce the "Concrete Joint Water Stop Material" developed by Sanadd Co., Ltd. This product is a construction material designed to stop water leakage at concrete joint areas. Not only does the bentonite granule inside the bag absorb water and swell to create a water stop, but the gel that swells from the mesh of the bag can also block gaps, providing two effects. [Reasons for using granules] - By using granules, the structure of the particles increases the swelling speed. - After filling with bentonite, if it were in powder form, the powder would leak out through the gaps in the bag, so we made it into granules to prevent this. *For more details, please refer to the related links or PDF materials, or feel free to contact us.

  • Contract manufacturing

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