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  1. Home
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  4. Waterproofing, moisture-proofing and humidity control materials
  5. Waterproof tape, adhesive, drain, protective panel
  6. "Flood prevention and waterproofing" Non-curing single-component water stop material Tometaro [NETIS]

"Flood prevention and waterproofing" Non-curing single-component water stop material Tometaro [NETIS]

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Tometaro

last updated:Nov 22, 2025

EPJ
EPJ
  • Special site
  • Official site

[NETIS Registered Product] We appreciate your continued support for leak prevention and measures against water leakage in hand holes after installation, as well as in various penetrations and diverse gaps in structures.

TometaroⓇ is a non-curing, polyolefin-based water stop putty for leak prevention and repair. It adheres firmly to resin, rubber, metal, and concrete, making it a versatile water stop material that can also be applied in flowing water conditions. It is suitable for leak prevention in electrical equipment handholes and cable/pipeline penetration areas. It is resistant to salt, acid, and alkali, and does not cure after opening, allowing for long-term storage within specified conditions. ◎ R2.6 Issued 'Guidelines for Flood Prevention Measures for Electrical Equipment in Buildings' ◎ <Features> ■ Heat resistance up to 90°C, stable water stop without yielding to high-pressure cables ■ Putty alone/water-tight performance of 0.05 MPa (with optional use, 0.15 MPa) ■ Can be used even during leaks (in flowing water) ■ Consideration for cable re-pulling, allowing for removal and re-filling ■ Unlike curing water stop materials, it has no curing shrinkage and can continuously stop water ■ A sense of security with a wealth of adoption results in both public and private sectors ■ Safe rodent prevention, blocking rodent intrusion ■ A wide range of options to accommodate various situations ■ "Japan Quality: NETIS Product" trusted quality ■ Ecology & Safety, friendly to people and the environment *For details, please request a catalog via "Contact Us" or view the PDF data from "Download"

    Waterproof tape, adhesive, drain, protective panelPiping and electrical wiring materialsPiping materials (plastic pipes)
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"Flood prevention and waterproofing" Non-curing single-component water stop material Tometaro [NETIS]

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  • EPJ Web「TOMETARO PAGE」
  • Special site - Product/service details - https://pr.www.ipros.com/epj/product/

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Related Videos

basic information

◆Prevention and measures against water leakage along laid cables ◆Water leakage treatment in handholes ◆Prevention and measures against water leakage from cable conduits and gaps in wall joints ◆Prevention and measures against water leakage around sleeves ◆Prevention and measures against water leakage around ducts ◆Prevention and measures against water leakage from concrete cracks ◆Sealing and condensation prevention inside cubicles and similar enclosures ◆Prevention of rodent intrusion and environmental pest control TometaroⓇ Channel [EPJ INC.] ● Tometaro filling construction video (Version 3) https://www.youtube.com/watch?v=S-U0qXw_u9o ● Concept and product PR video https://www.youtube.com/watch?v=QuMCVKnroHQ ~Usage instructions are available on YouTube; please be sure to check before filling work. If you have any questions regarding handling, please do not hesitate to contact us at the information below~ Contact: EPJ INC. TEL: +81 3-5643-8137 FAX: +81 3-5643-8138 Email: info@epj-inc.co.jp

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Please contact us for details

Delivery Time

P2

Applications/Examples of results

*R2.6 Publication by the Ministry of Foreign Affairs: "Guidelines for Flood Prevention Measures for Electrical Equipment in Buildings" *R3.4 Publication by the Japan Sewage Works Agency: "Promotion of Waterproofing (Final Version)" The adoption of these measures in construction projects is rapidly increasing. Electrical equipment (handhole pipe openings, underground penetrations, around piping) Mechanical equipment (underground penetrations, around piping) civil engineering and architecture <Excerpt of 10 Flood Prevention and Waterproofing Construction Achievements for FY 2024> - Hokkaido, Ikanmachi: Waterproofing measures at Ikan Purification Center - Japan Waterworks Agency: Construction of Higashi B Wastewater Treatment Plant, Part 31 - Osaka Prefecture, Osaka City: Renovation and upgrade project for Ebi E Wastewater Treatment Plant - Tochigi Prefecture, Utsunomiya City: Water treatment equipment construction at Kawad D Water Reclamation Center - Gunma Prefecture, Toka City: Construction of Toka City 2nd Phase Iwasome and Minami Goko District Pump Station (1) - Mie Prefecture, Hokusei River Basin Sewerage Office: 2nd Phase Construction Project for Minami B Purification Center - Hyogo Prefecture, Tatsuno City: Waterproofing construction at Tatsuno City Matsubara Pretreatment Plant - Nara Prefecture, Kuzu City: Leak repair at Kuzu City Takeuchi Water Purification Plant - Tokyo Metropolitan Sewerage Bureau: Renovation of Mikawa J Water Reclamation Center - Fukushima Prefecture, Koriyama City: Installation of emergency power generation equipment at Lake N Purification Center Others *For general public works and renewable energy facility construction achievements, please refer to separate materials.

Detailed information

  • slrGZwVfq5nOMcu1722768328_1722768358.png

    Tometaro Filling Surface (Two-Layer Filling)

  • 14c1JoggLSO6O9c1722768397_1722768410.png

    Tometaro + Option Hatsureeru Surface (3-layer Filling)

  • Zm5zfrYHjac4jvK1722768428_1722768443.png

    High Voltage CVT Cable Filling

  • NKKrjiiuzD63Um01722768458_1722768479.png

    Filling of underground penetration CVT cable

  • Qs7ns0uwXpuFWx21722768514_1722768525.png

    Communication cable filling

  • zpHxMyl6mUUei0Z1722768537_1722768551.png

    Filling of the penetration section directly under the power supply cabinet

  • t9dtDIvHcphq7Z41722768568_1722768583.png

    Residential Building Underground Power Supply Entrance _ Filling

Line up(6)

Model number overview
TM-B5 Tometaro 5kg Cup
TM-B1 Tometaro 1kg Cup
SU-1 (Optional) Suutaro Backup Material 20×70×1,000L
HT-1K (Optional) Hatsureeru 1kg bag
PK375 (Optional) Pikari-Star 375ml (Tometaro Removal Agent)
PK375H (Optional) Pikari-Star Box 375ml × 6 bottles (Tometaro Removal Material)

catalog(6)

Download All Catalogs
Tome Taro® Non-drying Polyolefin-based One-component Water Stop Putty - Non-curing Water Stop Material -

Tome Taro® Non-drying Polyolefin-based One-component Water Stop Putty - Non-curing Water Stop Material -

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

Tome Taro® Non-drying Polyolefin-based One-component Water Stop Putty (Non-curing Water Stop Material) Leak Prevention/Leak Repair - Flood Prevention and Waterproofing Project -

Tome Taro® Non-drying Polyolefin-based One-component Water Stop Putty (Non-curing Water Stop Material) Leak Prevention/Leak Repair - Flood Prevention and Waterproofing Project -

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

Tometaro® Water Stop and Filling Material [Rodent Control / Flood Prevention & Waterproofing] Non-Hardening Type Cable/Through-Penetration Water Stop Material and Water Stop Putty

Tometaro® Water Stop and Filling Material [Rodent Control / Flood Prevention & Waterproofing] Non-Hardening Type Cable/Through-Penetration Water Stop Material and Water Stop Putty

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

Tome TaroⓇ ser. Premixed Mortar Hatsu Re-ru (Chipping Mortar)

Tome TaroⓇ ser. Premixed Mortar Hatsu Re-ru (Chipping Mortar)

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

All-purpose release agent "Pikaristar" stripping agent and remover [Electricity and Communication Equipment Edition]

All-purpose release agent "Pikaristar" stripping agent and remover [Electricity and Communication Equipment Edition]

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

[Underground beam sleeve/flood prevention/waterproofing] Waterproof sleeve for underground exterior walls "Pipe in Sleeve" A3 size spread

[Underground beam sleeve/flood prevention/waterproofing] Waterproof sleeve for underground exterior walls "Pipe in Sleeve" A3 size spread

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

CAD data(12)

Model number overview File
Drawing: Tome Taro Filling Cross Section (2 Layers) Aqua Connector® Specification Non-drying polyolefin-based single-component waterproofing putty "Tome Taro®" Furukawa Electric Co., Ltd. underground cable protection pipe "Eflex" This is a cross-sectional view of the two-layer filling at the handhole wall/cable penetration (Aqua Connector).
  • 2D pdf ( 454KB)
Drawing: Tome Taro Filling Cross Section (2 Layers) Aqua Connector® Specification Non-drying polyolefin-based single-component waterproofing putty "Tome Taro®" Furukawa Electric Co., Ltd. underground cable protection pipe "Eflex" This is a cross-sectional view of the two-layer filling at the handhole wall/cable penetration (Aqua Connector).
  • 2D jww ( 58KB)
Drawing: Tome Taro Filling Cross Section (2 Layers) Aqua Connector® Specification Non-drying polyolefin-based single-component waterproofing putty "Tome Taro®" Furukawa Electric Co., Ltd. underground cable protection pipe "Eflex" This is a cross-sectional view of the two-layer filling at the handhole wall/cable penetration (Aqua Connector).
  • 2D dxf ( 122KB)
Drawing: Tome Taro Filling Cross Section (2 Layers) Bell Mouth Specification Non-drying polyolefin-based single-component water-stopping putty "Tome TaroⓇ" Furukawa Electric Co., Ltd. underground cable protection pipe "Eflex" This is a cross-sectional view of the two-layer filling at the handhole wall surface/cable penetration section (bell mouth).
  • 2D pdf ( 460KB)
Drawing: Tome Taro Filling Cross Section (2 Layers) Bell Mouth Specification Non-drying polyolefin-based single-component water-stopping putty "Tome TaroⓇ" Furukawa Electric Co., Ltd. underground cable protection pipe "Eflex" This is a cross-sectional view of the two-layer filling at the handhole wall surface/cable penetration section (bell mouth).
  • 2D jww ( 0B)
Drawing: Tome Taro Filling Cross Section (2 Layers) Bell Mouth Specification Non-drying polyolefin-based single-component water-stopping putty "Tome TaroⓇ" Furukawa Electric Co., Ltd. underground cable protection pipe "Eflex" This is a cross-sectional view of the two-layer filling at the handhole wall surface/cable penetration section (bell mouth).
  • 2D dxf ( 0B)
Drawing: Tome Taro Filling Cross Section (3 Layers) Bell Mouth Specification Non-drying polyolefin-based one-component waterproofing putty "Tome Taro" + "Hatsureru" Furukawa Electric Co., Ltd. Underground cable protection pipe "Eflex" This is a cross-sectional view of the three-layer filling at the handhole wall/cable penetration section (bell mouth).
  • 2D pdf ( 493KB)
Drawing: Tome Taro Filling Cross Section (3 Layers) Bell Mouth Specification Non-drying polyolefin-based one-component waterproofing putty "Tome Taro" + "Hatsureru" Furukawa Electric Co., Ltd. Underground cable protection pipe "Eflex" This is a cross-sectional view of the three-layer filling at the handhole wall/cable penetration section (bell mouth).
  • 2D jww ( 72KB)
Drawing: Tome Taro Filling Cross Section (3 Layers) Bell Mouth Specification Non-drying polyolefin-based one-component waterproofing putty "Tome Taro" + "Hatsureru" Furukawa Electric Co., Ltd. Underground cable protection pipe "Eflex" This is a cross-sectional view of the three-layer filling at the handhole wall/cable penetration section (bell mouth).
  • 2D dxf ( 163KB)
Drawing: Tome Taro Filling Cross Section (3 Layers) Aqua Connector® Specification Non-drying polyolefin-based single-component water stop putty "Tome Taro" + "Hatsureru" Furukawa Electric Co., Ltd. Underground cable protection pipe "Eflex" This is a cross-sectional view of the three-layer filling at the handhole wall and cable penetration section (Aqua Connector).
  • 2D pdf ( 470KB)
Drawing: Tome Taro Filling Cross Section (3 Layers) Aqua Connector® Specification Non-drying polyolefin-based single-component water stop putty "Tome Taro" + "Hatsureru" Furukawa Electric Co., Ltd. Underground cable protection pipe "Eflex" This is a cross-sectional view of the three-layer filling at the handhole wall and cable penetration section (Aqua Connector).
  • 2D jww ( 66KB)
Drawing: Tome Taro Filling Cross Section (3 Layers) Aqua Connector® Specification Non-drying polyolefin-based single-component water stop putty "Tome Taro" + "Hatsureru" Furukawa Electric Co., Ltd. Underground cable protection pipe "Eflex" This is a cross-sectional view of the three-layer filling at the handhole wall and cable penetration section (Aqua Connector).
  • 2D dxf ( 143KB)

News about this product(3)

The non-drying polyolefin-based one-component water stop agent Tome Taro® has been officially registered under "NETIS" in the KT jurisdiction.

  • Product news

Ministry of Land, Infrastructure, Transport and Tourism New Technology Information Provision System NETIS <Registration Number KT-250002-A>

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All-Purpose Removal Agent Pikarisuta - Release Start

  • Product news

Pikaristar is a release agent developed to safely remove Tometaro, a non-drying polyolefin-based one-component water stop agent (non-curing water stop material) made entirely from "natural materials" that is safe for the environment and human health. When re-entering cables into a conduit where Tometaro has been applied, this spray-type liquid allows for the safe and quick removal/release of Tometaro. This product not only facilitates the removal of Tometaro but also enables the peeling and removal of dirt that inevitably occurs during cable connection work, as well as "stubborn residues" that have dissolved over time! Furthermore, it can be utilized not only for the aforementioned "industrial applications" but also for various "household applications." 【Features】 ■ An all-purpose release agent for "various applications" ■ Made from "natural materials," considerate of the environment and people

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We have started publishing CAD.

  • Other・notification

We are sequentially publishing various cross-sectional diagrams of Tome TaroⓇ filling, such as Pipe in Sleeve and EP-Sleeve. Please make use of them.

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Companynews list (9)

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EPJ

EPJ

Building materials, supplies and fixtures manufacturers

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A manufacturer specialized in planning, design, and engineering. We focus on product development to solve various issues at construction sites, providing innovative, cutting-edge, and ecological products. Please feel free to contact us.

Product/Service List (32)

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