Polyolefin-based single-component water stop material Tome Taro for flood prevention【NETIS】

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Tometarou

last updated：Nov 23, 2025

EPJ

Official site

Non-curing water stop material that can be installed even during flowing water conditions. It is appreciated for handling leakage treatment in hand holes after installation and for preventing leakage and water ingress at various penetration points of structures.

Tome Taro is a non-curing, polyolefin-based waterproofing putty for leak prevention and repair. It adheres firmly to resins, rubber, metals, and concrete, making it a versatile waterproofing material that can also be applied in flowing water conditions. It is suitable for leak prevention in electrical equipment handholes and at penetration points of cables and conduits. It is resistant to salt, acid, and alkali, and because it does not cure after opening, it can be stored for long periods as long as it is within storage regulations. ◎ Issued in June 2020: "Guidelines for Flood Prevention Measures for Electrical Equipment in Buildings" ◎ <Features> ■ Heat resistance up to 90°C, stable waterproofing without yielding to high-pressure cables ■ Putty alone/waterproof performance of 0.05 MPa (0.15 MPa with optional use) ■ Can be applied even during leaks (flowing water) ■ Consideration for cable re-pulling allows for removal and re-filling ■ Unlike curing waterproofing materials, it has no curing shrinkage and can continuously provide waterproofing ■ A sense of security with a wealth of adoption records in both public and private sectors ■ Safe rodent prevention, blocking rodent intrusion ■ A variety of options to accommodate various situations ■ "Japan Quality" assurance and reliable quality ■ Ecology & Safety, gentle to the Earth and humanity *For more details, please contact us using the information below or download the PDF data from the "Ipros site."

Related Link - https://pr.www.ipros.com/epj/

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basic information

<Required Locations and Uses> ◆ Prevention and measures against water leakage along laid cables ◆ Water leakage treatment in handholes and flood prevention measures ◆ 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, etc. ◆ Prevention of rodent intrusion and environmental pest control Tome TaroⓇ Channel [EPJ INC.] ● Concept and product promotional video https://www.youtube.com/watch?v=QuMCVKnroHQ ● Tome Taro filling construction video (Version 3) https://www.youtube.com/watch?v=S-U0qXw_u9o ~Usage instructions are available on YouTube; please check before filling work. If you have any questions regarding handling, please feel free to contact us at the address below.~ Contact: EPJ Corporation [E-P-J] TEL: 03-5643-8137 FAX: 03-5643-8138 Email: info@epj-inc.co.jp

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Applications/Examples of results

*R2.6 Publication of National Transportation and Infrastructure Document "Guidelines for Flood Prevention Measures for Electrical Equipment in Buildings" The adoption of these measures in construction is rapidly increasing. Electrical equipment (handhole pipe openings, underground penetrations, around piping) Mechanical equipment (underground penetrations, around piping) and other civil engineering and construction <Excerpt from 10 Public Sector Delivery Achievements in 2023> - Independent) National Hospital Organization | O Hospital Gas Supply Equipment Construction - Independent) Water Resources Organization | S River Water Utilization Facility Development - Ministry of Defense K Defense Facilities Bureau | E (2) Substation Equipment Renewal Construction - Independent) Regional Medical Function Promotion Organization | J Hospital Reconstruction Development (Electrical) - Ministry of Land, Infrastructure, Transport and Tourism H Regional Development Bureau | A Bypass Section 5 Improvement Construction - Ministry of Health, Labour and Welfare | Z Comprehensive Welfare Center Power Supply Equipment Construction - Ministry of Justice S Court | S Building Electrical Equipment Construction - Ministry of Land, Infrastructure, Transport and Tourism T Aviation Bureau | T International Airport Apron Area Fueling Facility Construction - Independent) Urban Renaissance Agency | W First Housing Building No. 26 Renovation - National Research and Development Agency N Atomic Energy Research and Development Agency | T Flood Prevention Construction, etc. <Excerpt from 5 Energy Facility Delivery Achievements in 2023> - O River Hydroelectric Power Plant - H Okayama Hydroelectric Power Plant - O Power Plant Major Renovation - T Power G Distribution Handhole Flood Prevention Measures - T Power G Distribution Underground Pit Flood Prevention Measures