Water-stopping material Product List and Ranking from 38 Manufacturers, Suppliers and Companies

[Column] What is the "secondary water stop material" for expansion joints? An overview of its purpose and types.

Secondary water stop materials for secondary water stopping! An explanation of the purpose and an introduction to products from various manufacturers.

The lifespan of a bridge is greatly affected by the water-stopping performance of the expansion device. While it is natural to require the water-stopping performance of the main product (primary water stop), recently there have been increasing cases where the installation of "secondary water-stopping materials" is requested in case the primary water-stopping performance of the main body deteriorates. Therefore, I would like to explain the "purpose" of the secondary water-stopping materials related to the water-stopping performance of the expansion device and provide "introductions to products from various manufacturers." *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

Company：クリテック工業本社、大阪営業所、福岡営業所
Price：Other

Manufacturing Equipment
Water-stopping material

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[Column] Explanation of the Reasons and Types of Water-Stopping Materials for Expansion Devices

A detailed explanation of the role of the water-stopping material in the expansion and contraction device and the types of water-stopping materials.

One of the functions required of expansion joints is water-tightness. High water-tightness not only extends the lifespan of bridges but also reduces lifecycle costs, providing many benefits. However, the water-stopping materials that fulfill this role are very susceptible to damage and are a major cause of leaks. Therefore, various measures are being implemented by manufacturers to maintain the water-stopping materials for as long as possible. This article explains the role of water-stopping materials in expansion joints and the types of water-stopping materials. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.*

Company：クリテック工業本社、大阪営業所、福岡営業所
Price：Other

Bridge Materials
Bridge Construction
Water-stopping material

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Germany Kuster Company manufactured waterproof and water-stopping material.

A product range developed in the harsh environment of northern Germany, characterized by heavy snowfall and abundant groundwater.

Köster GmbH, a German company acting as a sales agent for Nippon Kutaishori Co., Ltd., is a manufacturer of excellent waterproofing and water-stopping materials. To introduce a few, the instant water-stopping mortar "KÖSTER KD2" can stop water by simply pressing it against the leak for 10 to 20 seconds. Additionally, "KÖSTER KP2in1" expands internally when injected into a leak to stop the water, while hardening in areas without leaks to provide waterproofing; it is a highly flexible polyurethane injection material. There are many other excellent products available as well. Since its establishment in 1982, Köster GmbH has been dedicated to the research, development, manufacturing, construction, and improvement of ancillary services as a specialized manufacturer of water-stopping and waterproofing materials. The product range developed in the harsh environment of northern Germany, which has heavy snow and groundwater, is actively distributed in over 45 countries worldwide and has also obtained ISO 9001 certification. For more details, please contact us or refer to the catalog.

Company：日本躯体処理
Price：Other

Waterproof sheet
Coating film waterproofing material/permeable waterproofing material
Waterproofing work
Water-stopping material

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Waterproofing material for foundation joint in detached houses - Stopper K

Shut out water leakage from the joint section to the underfloor!! Water stop material for residential foundation joints.

The water stop material "Stopple K" for foundation joint sealing is an inexpensive and easy-to-install water stop designed to shut out water leakage from the foundation perimeter to the crawl space. Since it is in paste form, it can be used not only for the joint areas but also around penetrating pipes. For more details, please contact us or download the catalog.

Company：株式会社共ショウ　住宅関連事業本社（東京）、大阪支店、名古屋支店、福岡営業所
Price：Other

Humidity control materials
Safety and consumables
Waterproofing work
Water-stopping material

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Bentonite external type water stop material Kuni Seal 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 nail driving.

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 exhibiting excellent waterproofing effects. Kuniseal BT is an external type of waterproofing material. For more details, please download the catalog or contact us.

Company：クニミネ工業
Price：Other

Bentonite
Waterproofing work
Roof and gutter construction
Water-stopping material

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Natural Na-type bentonite-based water-stopping material

The self-sealing property exhibits a water-stopping effect! The effect lasts semi-permanently.

Our company conducts research and development utilizing 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, giving them rubber-like elasticity. When used under certain conditions, they exhibit perfect water stop functionality. 【Features】 ■ Easy and quick to install, can be done 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 hot 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.

Company：ミネロマン清水事務所
Price：Other

Waterproofing Agent
Water-stopping material

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Civil engineering and construction water stop material "Bentonite Pile Saver"

The granules made primarily from environmentally friendly wood powder are filled into a mesh tube.

The "Bent Tight Pile Saver" is effective in removing installation obstacles for steel pipe sheet piles driven into hard strata, particularly for lengths exceeding 30 meters, significantly changing the processes of driving, excavation, and filling. Traditionally, methods such as filling with tubular expanded polystyrene were used, but the Pile Saver replaces this, offering not only improved workability but also better environmental performance. It is a versatile product that can be adopted in various joint structures, ground conditions, and installation methods. 【Features】 ○ Easy to handle size and weight, non-toxic and environmentally friendly, making it easy to use ○ Construction period for the driving process can be maintained ○ Excavation and filling processes can be shortened by 15-20% ○ Water-tightness of well foundations is improved ○ NETIS number: KT-100026-VE For more details, please contact us or download the catalog.

Company：テクノパウダルトン
Price：Other

Piles, caissons, sheet piles
Ground foundation construction method
Water-stopping material

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Waterproofing materials

We have water-blocking packer materials, mud and water prevention materials, and drilling fluid materials available.

We would like to introduce the "waterproofing materials and water-stopping materials" handled by Applied Measurement Services Co., Ltd. We offer a lineup including "Nice Seal (waterproof packing material)," "Nice Top (mud and water prevention material)," and "Drill Mate (drilling fluid material)." Please feel free to contact us when you need our services. 【Lineup】 ■ Nice Seal (waterproof packing material) ■ Nice Top (mud and water prevention material) ■ Drill Mate (drilling fluid material) *For more details, please refer to the PDF document or feel free to contact us.

Company：応用計測サービス
Price：Other

Waterproofing Agent
Waterproof tape, adhesive, drain, protective panel
Water-stopping material

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Solvent-free swelling water stop material for steel sheet piles "Pile Lock NS-V"

Environmentally friendly and solvent-free! Water stop material for steel sheet piles that exhibits high water resistance due to swelling.

The Japanese chemical paint "Pile Lock NS-v" is an environmentally friendly, solvent-free swelling waterproofing material for steel sheet piles, featuring high low-temperature fluidity. Compared to conventional products, its fluidity and strength at low temperatures have been improved, allowing for maintained work efficiency even during the cold winter months. The coating swells upon water absorption, filling the gaps at the joints (claw parts) of the steel sheet piles and enhancing the waterproofing effect. Additionally, "Pile Lock NS-v" is based on a urethane-type swelling resin and does not contain volatile organic solvents. It is environmentally friendly and ensures high safety during application. The use of a curing accelerator can also shorten the curing time. 【Features】 - No volatile organic solvents used - Curing time can be shortened with the use of a curing accelerator - Easy to apply as it only requires pouring and curing (hardening and drying) - Extracted water from the dried coating meets the groundwater standards based on the Soil Contamination Countermeasures Act *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

Company：日本化学塗料
Price：Other

Concrete sheet piles and piles
Piles, caissons, sheet piles
Water-stopping material

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Water-stopping material "Seal Cement"

Ideal workability and excellent adhesion! A waterproof cement that contributes to solving difficult water leaks and spring water issues.

"Seal Cement" is a powdered product that looks no different from regular cement, but when mixed with the appropriate amount of water, it rapidly hardens and provides strong filling adhesion, achieving greater strength than concrete, making it a water-stopping cement. It is easy to use, quickly hardening after being kneaded into a dough-like consistency, offering ideal workability and excellent adhesion. This product is a groundbreaking water-stopping material that contributes to solving difficult water leaks and spring water issues. 【Features】 - It has water retention and expansion properties, and adheres well to concrete. - Strength develops extremely quickly just by adding water and mixing. - It has exceptionally strong waterproofing capabilities. - There is no release of unpleasant odors during work, nor corrosion of containers. - It is non-toxic and can be used for water-stopping in drinking water applications. *For more details, please refer to the PDF materials or feel free to contact us.

Company：東和産業
Price：Other

Renovation and repair methods
Waterproofing Agent
Water-stopping material

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【NETIS Plus AC-170027-P】Bitograut-UG

Complete waterproofing under previously deemed impossible adverse conditions is now possible.

Our company employs the "Bitogrout-UG Injection Method," which completely seals leaks in underground structures and ensures long-term stability through the formation of external waterproofing. We drill a penetration hole in the back surface of the concrete structure and inject a water-based emulsion resin from there towards the inside. The resin permeates and backflows through various leak paths, forming a new waterproof layer. Additionally, this method allows for water stoppage over a long period of 10 to 25 years (with proven results), significantly reducing maintenance costs. 【Features】 ■ Enables water stoppage for a long period of 10 to 25 years (with proven results) ■ Low maintenance costs ■ Possesses stability performance that can be referred to as "post-construction external waterproofing" ■ Strong adhesion ensures long-lasting water stoppage effects ■ No volume reduction or permeability after curing *For more details, please refer to the PDF document or feel free to contact us.

Company：アクアテック
Price：Other

Renovation and repair methods
Water-stopping material

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Hinodakutairu Joint α Ground Water Stop (Embedded Type)

Surely prevent water leakage from the end of the expansion device! Confirmed water tightness equivalent to 30 years!

The "Hinodakutairu Joint α Ground Cover Water Stop (Embedded Type)" prevents water leakage from the ends by raising a water stop material at the ends of the expansion device and embedding it within the ground cover. Like the main body of the expansion device, water tightness equivalent to 30 years has been confirmed through the NEXCO water stop test (Test Method 438). 【Features】 ■ The water stop material is an elastic sealing material based on polybutadiene, similar to the main body of the expansion device. ■ Integrated with the main body of the expansion device in the factory. ■ Two height options are available to suit the installation environment. *For more details, please refer to the PDF document or feel free to contact us.

Company：日之出水道機器道路橋梁マーケティンググループ
Price：Other

Bridge Construction
Water-stopping material

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

We 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 building 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 close gaps, providing two expected effects. [Reasons for adopting 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.

Company：サンアッド
Price：Other

others
Water-stopping material

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[Sample available] Concrete joint waterproofing material "Gel Fit Rope"

Stop water leakage from construction and civil engineering underground concrete joints and cracks! An inorganic swelling water-stopping material that controls water with water!

"Gelfit Rope" is an environmentally friendly concrete joint bentonite-based water stop material that utilizes the rapid water absorption properties of gelation from modified refined bentonite. It prevents water leakage from construction and civil engineering underground concrete joints and cracks by the swelling of bentonite within a vinyl mesh. Additionally, bentonite is a completely inorganic mineral that does not decompose, complies with the soil environmental standards of the Japanese Pharmacopoeia, and is a material that is friendly to both the human body and the environment. You can view the swelling and melting of granular bentonite on our company website on YouTube. 【Features】 ■ Environmentally friendly ■ Water stop effect ■ No harmful substances or aging deterioration ■ Can be applied after leakage occurs ■ Easy temporary fixing construction *For more details, please refer to the catalog or feel free to contact us.

Company：シーケー
Price：Other

Reinforcement and repair materials
Water-stopping material

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Separator water-stopping material "Santac Separating"

Two-layer structure of vulcanized rubber and water-swelling rubber! Introduction of water-stopping material for separators.

"Santaq Separating" is a sealing material for separators that combines vulcanized rubber and water-swelling rubber. By passing this product through the separator and securing it, it blocks the waterway at the interface between the concrete and the separator, providing a watertight seal. It has a two-layer structure of vulcanized rubber and water-swelling rubber, so even if initial swelling begins due to rainwater or other factors before concrete placement, the inner diameter will not expand. 【Features】 ■ Blocks the waterway at the interface between the concrete and the separator, providing a watertight seal ■ Seals gaps caused by concrete dehydration and settlement through water-swelling action ■ Two-layer structure of vulcanized rubber and water-swelling rubber ■ Inner diameter does not expand even when initial swelling begins ■ Thickness of 12mm, considering workability *For more details, please refer to the PDF document or feel free to contact us.

Company：ジャパンノップ
Price：Other

Waterproofing Agent
Water-stopping material

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Water swellable sealing material for sleeves "Sleeve Ring"

Preventing the intrusion of rainwater and groundwater indoors with a laminated structure of water-expanding rubber and non-expanding rubber!

The "Sleeve Ring" is a water-swelling type sealing material for sleeves, characterized by its easy-to-read markings. It achieves excellent sealing performance through a laminated structure of water-swelling rubber and non-swelling rubber. It is installed on sleeve pipes (iron pipes and PVC pipes) that penetrate the beams, walls, and floors of buildings, preventing rainwater and groundwater from entering indoors by blocking the water path at the boundary between the concrete and the sleeve pipe. 【Features】 ■ Easy-to-read markings for compatible pipe diameters ■ Excellent sealing performance ■ Prevention of rainwater and groundwater intrusion indoors ■ Laminated structure of water-swelling rubber and non-swelling rubber *For more details, please refer to the PDF document or feel free to contact us.

Company：日栄インテック本社・営業所
Price：Less than 10,000 yen

Waterproofing Agent
Support hardware/opening hardware
Water and sewerage pipe fittings
Water-stopping material

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Bentonite waterproofing material "Kunishir(R)"

Waterproofing material with high water stop performance using bentonite.

The "Kunishir(R)" handled by Ando Shoten Co., Ltd. is a bentonite water-stopping material that swells upon contact with infiltrating water, thereby blocking gaps and restraining the movement of water. Water movement is restricted as it is adsorbed by the bentonite. Additionally, the swollen layer becomes an extremely impermeable material that is difficult for water to pass through. Furthermore, even if cracks or gaps occur around this product, it will swell and exhibit self-sealing properties. 【Features】 ■ Easy installation and shortened construction time ■ No special substrate treatment required ■ Sustained water-stopping effect ■ Gentle on structures ■ Can be installed with butt joints *For more details, please download the PDF or contact us.

Company：安藤商店
Price：Other

Waterproofing Agent
Water-stopping material

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Acrylic resin-based high-pressure injection waterproofing system "Bandeflexin"

By filling extremely low-viscosity acrylic resin into fine gaps, it demonstrates a high water-stopping effect.

"Bandefurekushin" is a two-component mixed acrylic resin waterproofing system. It is effective for waterproofing and preventing leakage in concrete structures at joints, cracks, expansion joints, etc. The polymerization curing time can be adjusted according to the leakage conditions on site, allowing the chemical solution to fill every corner of the voids. *Guideline for polymerization curing time: 10 seconds to 4 minutes This system integrates the injection material, injection equipment, and construction method, and is established to be carried out only by technicians who have obtained specialized licenses. [Application Examples] ■ Underground passages, underground shopping areas, etc. ■ Tunnels for roads and railways ■ Bridges ■ Sewage treatment facilities, wastewater tanks, water treatment facilities, etc. ■ Utility tunnels and joint trenches ■ Underground structures of various buildings *For more details, please refer to the PDF materials or feel free to contact us.

Company：保土谷建材本社
Price：Other

Waterproofing work
Special Construction Method
Water-stopping material

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Steel pipe sheet pile joint water stop work "Grout Jacket"

High adhesion to side walls, demonstrating water-stopping effectiveness! Custom sizes can also be produced to match joint diameters.

The "Grout Jacket" is a water stop construction for steel pipe sheet pile joints that minimizes damage during insertion and mortar injection, as it uses high-strength synthetic fibers. The vertical direction, made with polyester fibers, has high strength and low elongation, resulting in high dimensional stability. The horizontal direction, made with specially processed nylon fibers, has high elongation, which enhances adhesion to the side walls and demonstrates effective water stopping capabilities. 【Features】 ■ High strength ■ Dimensional stability ■ Adhesion *For more details, please refer to the PDF document or feel free to contact us.

Company：大嘉産業産業資材事業部
Price：Other

Parts and Materials
Water-stopping material

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Water-repellent sealing material "Sysidon"

Since it has obtained Ministry of Health, Labour and Welfare Order No. 15, it can also be applied to water supply facilities! It demonstrates excellent water-stopping effects.

"Shisuidon" is a hydrophobic two-component polyurethane resin developed for sealing leak points. It exhibits excellent sealing effects as it reacts immediately to leaks, foaming and curing. Being solvent-free, it is highly safe. Additionally, it has obtained Ministry of Health and Welfare Ordinance No. 15 certification, making it applicable to water supply facilities. 【Features】 ■ No measurement is required as the base material and catalyst are pre-measured. ■ Mixing is done using a grease gun's bellows container, so hands stay clean. ■ Each set weighs approximately 300g, making it easy to carry. ■ It cures quickly even in areas without leaks, as it hardens with moisture in the air. *For more details, please refer to the PDF document or feel free to contact us.

Company：ツダ
Price：Other

Coating film waterproofing material/permeable waterproofing material
Coating film waterproofing material/permeable waterproofing material
Water-stopping material

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Leak Stopper Material "MY Keeper"

Specific gravity 1.3! A waterproof material that can resist water loss and prevent rainwater infiltration for a long time.

"MY Keeper" is a non-hardening water-based sealing material that is effective against pinpoint leaks. It takes a long time to cure, resulting in minimal shrinkage after injection and maintaining a filled state. 【Features】 - As it is an emulsion, it retains adhesive strength for a long time even when the interior is damp, preventing interface delamination. - It maintains a liquid state for an extended period, and does not delaminate even in the event of earthquakes or other disturbances. *For more details, please download the PDF or feel free to contact us.

Company：インテック日塗
Price：Other

Waterproofing Agent
Interior coating materials
Natural paints (water-based, ink, etc.)
Water-stopping material

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Labor-saving! Waterproof sleeve for underground outer walls (underground beams) Pipe-in-Sleeve.

[Official Release] Waterproof Sleeve for Underground Walls "Pipe-in-Sleeve" (Abbreviated as PIS) Reducing Labor at Construction Sites! Enhancing Waterproof Performance of Buildings!

■Recently, our "Pipe-in-Sleeve," showcased at the JECA Fair 2025, is officially released with great anticipation.■ In the underground wall section (underground beam sleeve), we have pre-treated the PVC sleeve and the outer space (gap) of the FEP with "waterproof treatment" at the factory, making it prefabricated for the site. On-site, there is no need for cumbersome work; after installing the PIS, basically only joint connections are required. It ensures stable waterproofing! Achieving work efficiency and promoting flood prevention and water resistance. This is an innovative and advanced product for underground beam sleeve construction. <Features> ■ Excellent waterproof performance [Flood prevention and water resistance promotion] ■ Proposal for labor-saving at construction sites ■ Adaptable to individual project design specifications ■ Improved work efficiency, standardized quality, and enhanced maintainability [To Designers and Contractors] FEP pipe through-piping, bell mouth terminal installation, connection of different pipes (AQ type), and various connection parts of Eflex can be arranged according to the specifications of each construction site! Furthermore, it can also respond to unexpected water leaks! It combines maintenance and serviceability, making it a versatile and highly adaptable product. (Feel free to request drawings as well) *For details, please request a catalog from "Contact Us" or view the PDF data from "Download"

Company：EPJ
Price：Other

Reinforcement and repair materials
Waterproofing Agent
Water stop
Water-stopping material

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Leak Repair Case: Around Windows (Openings)

Quick and hassle-free with our original patented technology! Introducing examples of leak repair.

At Eita Special Waterproofing Industry Co., Ltd., we perform leak repair using our original patented technology. Our permanent water-stopping agent, the Edas-style leak repair system "Tomar E (trademark registered) - water-stopping method (high-pressure resin injection method)," penetrates while self-exploring the hidden troublesome "water paths" on the surface, effectively sealing and eliminating leaks even in underwater or damp environments, without the need for excessive time and effort. We would like to introduce a case of leak repair from around a window (opening). [Repair Case] ■ Case: Leak from around a window (opening) ■ Equipment Used: Tomar E, foot-operated injection machine *For more details, please refer to the PDF materials or feel free to contact us.

Company：江田特殊防水工業
Price：Other

Other construction services
Water-stopping material

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Leak Repair Case Study: Exterior Wall

Quick and hassle-free with our original patented technology! Introducing examples of leak repair.

At Eita Special Waterproofing Industry Co., Ltd., we perform leak repair using our original patented technology. Our permanent water-stopping agent, the Edas-style leak repair system "Tomar E (trademark registered) - Water Stopping Method (High-Pressure Resin Injection Method)," penetrates while self-detecting hidden troublesome "water paths" on the surface, effectively sealing and eliminating them even in underwater or damp environments, all without taking much time or effort. Here are some examples of leak repairs from exterior walls. [Repair Example] ■ Case: Leak from exterior wall ■ Equipment Used: Tomar E, foot-operated injection machine *For more details, please refer to the PDF materials or feel free to contact us.

Company：江田特殊防水工業
Price：Other

Other construction services
Water-stopping material

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Waterproofing and sealing agent Shibilt Trust

Waterproofing and sealing agent Shibiru Trust

This is a civil engineering dedicated modified material with a two-layer waterproofing (deterioration protection waterproofing material). 【Features】 ○ It prevents water infiltration from the surface while allowing internal moisture to be released by penetrating the structure. ○ By providing breathability to the structure, it prevents various adverse effects. ○ The permeable moisture-proofing material is applied and impregnated into the structure, providing moisture resistance to the surface layer while leaving the capillaries intact, thus not hindering moisture release. ● For other functions and details, please download the catalog.

Company：ケミックス本社
Price：Other

Mural
Waterproofing Agent
Waterproofing work
Water-stopping material

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Introduction to Repair Services

Leak repair utilizing the patented technology of Eita Special Waterproofing Co., Ltd.!

At Eda Special Waterproofing Industry Co., Ltd., we perform leak repair using our original patented technology. This troublesome "water path," which is hidden on the surface, is self-explored and penetrated, and our permanent water-stopping agent, the Eda-style leak repair system "Tomar E (trademark registered) - Water Stopping Method (High-Pressure Resin Injection Method)," effectively blocks and eliminates it even in underwater or damp environments, all without taking much time or effort. 【Equipment Used】 ■ Tomar E ■ Foot-operated injection machine *For more details, please feel free to contact us.

Company：江田特殊防水工業
Price：Other

Other construction services
Water-stopping material

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Leak Repair Case Study: Rooftop and Balcony Slab

Quick and hassle-free with our original patented technology! Introducing examples of leak repair.

At Eita Special Waterproofing Industry Co., Ltd., we perform leak repair using our original patented technology. Our permanent water-stopping agent, the Eita-style leak repair system "Tomar E (trademark registered) - Water Stopping Method (High-Pressure Resin Injection Method)," penetrates while self-detecting hidden troublesome "water paths" on the surface, effectively sealing and eliminating them even in underwater or damp environments, without the need for extensive time and effort. We would like to introduce a case of leak repair from rooftop and balcony slabs. [Repair Case] ■ Case: Leak from rooftop and balcony slabs ■ Equipment Used: Tomar E, foot-operated injection machine *For more details, please refer to the PDF document or feel free to contact us.

Company：江田特殊防水工業
Price：Other

Unit and other construction
Other construction services
Water-stopping material

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Water-stopping material Product List and Ranking from 38 Manufacturers, Suppliers and Companies | IPROS

Water-stopping material Manufacturer, Suppliers and Company Rankings

Water-stopping material Product ranking