Construction method(frp) - List of Manufacturers, Suppliers, Companies and Products

Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
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Construction method Product List

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Gainah SH sheet board method (tunnel, concrete structure reinforcement)

Gainah SH sheet board method (tunnel, concrete structure reinforcement)

Existing Tunnel Reinforcement Method Using "CFRP" Bonded Plates - Achieving Effective Tunnel Interior Reinforcement with High-Strength CFRP Using Carbon Fiber Sheets and Separators.

■NETIS Number: KT-230046 Technology Name: Fiber Sheet Adhesive Method for Tunnel and Bridge Repair and Reinforcement "Gaina SH Sheet Board Method" * Reinforcement with a single-layer laminated fiber sheet using high-density carbon fiber (compared to conventional multi-layer). * Compared to our carbon fiber sheet method of overlapping, this method is expected to shorten construction time and reduce costs. * Lighter than our steel plate adhesive method. No anchor work is required due to adhesive application. Fewer processes are needed compared to our continuous fiber sheet method. * High strength allows for strip placement. Unfinished areas between strips can be visualized, enabling visual confirmation of crack progression after reinforcement. * High-performance impregnation agents ensure reliable impregnation, allowing for high-quality construction. * No specialized skills are required for application and impregnation work, making it easy to secure construction personnel. * As a fiber sheet adhesive method, partial construction and partial adhesion are possible. It is flexible, allowing for easy application in corners.

  • SH3.JPG
  • SH.JPG
  • シート貼付.JPG
  • Bridge Materials

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Cypress bath and wood regeneration glass coating method

Cypress bath and wood regeneration glass coating method

A new technology for the regeneration method that maintains the aesthetic appearance of aged and deteriorated wood over the long term, addressing issues such as discoloration, splinters, mold, rot, dirt, and damage!

Glass paint for wood is a top-quality wood coating that possesses discoloration prevention, antibacterial, and antifungal properties. The inorganic glass film prevents the deterioration of wood and exhibits excellent water repellency. It also reinforces wood fibers, preventing splinters and rough edges. This technology is medically safe, allowing for worry-free use in venues such as assembly halls, hot spring facilities, and food factories. 【Features】 ■ Reduces slipping, staining, and UV degradation of wood ■ Suppresses mold and excels in water repellency ■ Prevents wood rot, damage, and termite infestation ■ Can suppress efflorescence in non-combustible and quasi-non-combustible wood ■ Widely adopted in buildings made of CLT, a technology currently in the spotlight

  • Exterior coating materials
  • Interior coating materials
  • Wood processing

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Underground buried resin double-shell piping with leak detection device [30-year warranty]

Underground buried resin double-shell piping with leak detection device [30-year warranty]

Patented technology exclusive to Sunfront with a 30-year warranty.

This is a structure that incorporates sensors into the gap between the inner pipe of the double-shell piping and the outer shell pipe. This technology allows for pinpoint detection of leaks from external water and internal fuel oil, enabling repairs to the faulty areas before any actual damage occurs. Patent: No. 4421711, Utility Model: No. 3183085, Patent Application: 2014-235598, Patent Application: 2015-115624 - Double Piping Structure Utility Model: No. 3195379, Patent Application: 2014-176033, Utility Model Application: 2014-005777 - Piping Structure ■ Single Shell Piping Resin piping is developed for the transportation of fuels such as petroleum products. It is also suitable for organic solvents and achieves high hydrocarbon durability. ■ Double Shell Piping This is a piping structure that places an outer shell pipe over the inner shell pipe (single shell piping). By doubling the piping, the risk of fuel oil leakage (environmental pollution) can be dramatically reduced, making it suitable for suction pipes and oil supply pipes that serve as pathways for fuel oil. *For more details, please contact us or download the PDF materials for review.

  • Piping materials (plastic pipes)

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Reinforcement of Reinforced Concrete Structures: Underwater Applicable CFRP Grid Reinforcement Method

Reinforcement of Reinforced Concrete Structures: Underwater Applicable CFRP Grid Reinforcement Method

It is a method for reinforcing concrete structures in water inexpensively without draining.

The underwater applicable CFRP grid reinforcement method is a technique that provides a cost-effective solution for aging deterioration and insufficient seismic strength in reinforced concrete structures such as bridge piers located underwater. The method involves adhering a lattice of carbon fiber bundles (CFRP grid) that has been impregnated with resin to the surface of the structure using a resin layer that cures underwater, thereby reinforcing the structure. Both the CFRP grid and the underwater curing resin have long-term durability. 【Features】 - Reinforces concrete structures underwater - Can be reinforced inexpensively without drainage - Long-term durability with CFRP grid and underwater curing resin - Carbon fiber can reinforce with high strength and minimal thickness - NETIS registration number KT-100101-A For more details, please contact us or download the catalog.

  • Reinforcement and repair materials

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FRP waterproofing IRM method for self-driving parking lots

FRP waterproofing IRM method for self-driving parking lots

Impact resistance and wear resistance dramatically improved with FRP + resin mortar!

The "IRM Method" is a waterproofing technique for self-supporting parking lots that combines an FRP waterproof layer with a resin mortar protective layer, offering a lightweight and highly durable solution. By using resin mortar for the protective layer, it achieves excellent water resistance and abrasion resistance with a thickness of just a few millimeters, and it is designed to withstand tire chains and de-icing agents typical in cold regions. There are numerous construction achievements in Hokkaido. This technology is registered with NETIS (Registration Number: KK-230013-A).

  • Coating film waterproofing material/permeable waterproofing material

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FRP concrete reinforcement material Sangrid

FRP concrete reinforcement material Sangrid

New materials for the repair and reinforcement of concrete structures.

"Sungrid" is a "FRP concrete reinforcement material" that integrates high-performance continuous fibers such as carbon fibers, aramid fibers, and glass fibers into a lattice structure while being impregnated with a resin that has excellent chemical resistance.

  • Reinforcement and repair materials

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FRP Bridge Vacuum Infusion Method

FRP Bridge Vacuum Infusion Method

A bridge that is resistant to salt damage, lightweight, high-strength, and does not decay.

Vacuum Infusion The entire glass fiber mat layered on the mold is covered with a film and sealed, creating a complete vacuum state by removing the air from the glass fiber layer. Next, using the power of the vacuum, polyester resin is injected into the glass fiber layer, ensuring it spreads evenly to create a uniform and strong FRP laminate. This manufacturing method is referred to as "Vacuum Infusion (VI)." This technique is also used in the production of large blades for wind turbines and yacht hulls. Laminates produced using this method are used in the structural components of FRP bridges. The high glass fiber content allows for lightweight and strong laminates, and there is the advantage of being able to produce very large laminate sheets. The shape of the mold can be freely designed, whether flat or curved, enabling the creation of elegantly shaped bridge girders.

  • Bridge Construction

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Concrete repair and reinforcement method "CFRP Laminate Method"

Concrete repair and reinforcement method "CFRP Laminate Method"

Streamlining of work is achievable! Repair and reinforcement methods for reinforced concrete structures using CFRP.

The "CFRP Laminate Method" is a reinforcement technique that involves arranging carbon fibers in one direction, impregnating them with epoxy resin, and shaping and curing them into a plate-like form. This CFRP is then adhered to the concrete surface using a paste-like epoxy adhesive (Sika Dur 30), making the process simple. Since the surface preparation is only required for the area to be adhered, it also takes into account the preservation of the working environment and the reduction of waste. 【Features】 - Easy to work with, requiring no large machinery or equipment - Can be performed in areas where pipes intersect beneath the slab or in confined spaces - Reduces safety risks for workers and minimizes protective measures around the work area - There is almost no change in the shape or weight of the reinforced members - Provides reinforcement equivalent to 4 to 8 layers of carbon fiber sheets, allowing for labor-saving in the work process *Available in Tokyo, Saitama, Chiba, and Kanagawa Prefectures *For more details, please refer to the PDF materials or feel free to contact us.

  • Reinforcement and repair materials

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【Pin Foundation Construction Example】Difficult Locations for Other Foundation Methods

【Pin Foundation Construction Example】Difficult Locations for Other Foundation Methods

Simple foundation methods for NETIS registration! We will introduce examples of construction in locations where other foundation methods are difficult.

Places where other foundation methods are difficult We will introduce examples of the pin foundation method. Due to weak ground, there are sites where foundation work becomes extensive, sites where draining water from ponds or canals incurs significant costs, or sites where transporting materials is very labor-intensive. In such cases, the lightweight pin foundation method, which can be constructed manually, is optimal. Depending on the case, it is also possible to significantly reduce the cost of foundation work. 【Examples】 ■ National Okinawa Memorial Park Ocean Expo Park (Okinawa Prefecture) ■ Structure: Effective width 2.0m, column pitch 3.0m ■ Materials used - Railing: FRP - Floorboard: FRP - Structural materials: Steel, FRP ■ Foundation type: DP-75, DP-100 *For more details, please refer to the catalog or feel free to contact us.

  • Civil Engineering Method
  • Ground foundation construction method
  • others

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Coating Type FRP Anti-Corrosion Material NM Method [For Sewage Facilities]

Coating Type FRP Anti-Corrosion Material NM Method [For Sewage Facilities]

We have developed a non-cross method using vinyl ester resin type!

The "NM method" is a coating-type lining method with a laminated specification that does not require impregnation and de-airing work during the lamination of fiber-reinforced fabric, which is necessary for reinforcement material lamination specifications (non-cross method). Additionally, it has obtained "Patent No. 7066236" as a method for corrosion protection of concrete. Furthermore, it corresponds to the coating-type lining method for concrete corrosion protection of sewer structures with laminated specifications (non-cross method) and is compliant with types A to D of the Japan Sewerage Agency and types C and D of the Tokyo Metropolitan Government Sewerage Bureau.

  • Sewerage facilities

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Reinforcement of Existing Concrete Structures: Outplate Method

Reinforcement of Existing Concrete Structures: Outplate Method

High bending reinforcement effect and high crack control effect! Suitable for the construction of RC and PC hollow slab bridges.

The Outplate method is a reinforcement technique that involves tensioning a prefabricated CFRP plate (Outplate) with anchoring bodies at both ends, fixing and bonding it to an existing concrete structure. Compared to conventional continuous fiber sheet bonding methods, tensioning the Outplate allows for the introduction of prestress into the concrete. This method achieves significant reinforcement effects with a minimal amount of reinforcement material. Since thin CFRP plates are used as tensioning materials, there is almost no change in the appearance or cross-section after reinforcement, making it particularly suitable for the construction of RC and PC hollow slab bridges. 【Features】 ■ High bending reinforcement effect ■ High crack control effect ■ Recovery of deflection ■ Improved durability ■ Minimal maintenance ■ Reinforcement above the supports of continuous girders is possible from the underside *For more details, please refer to the PDF document or feel free to contact us.

  • Renovation and repair methods

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The Innovative CFRP Repair and Reinforcement Method for Steel Structures - In-situ VaRTM Method

The Innovative CFRP Repair and Reinforcement Method for Steel Structures - In-situ VaRTM Method

Forming 3D-shaped CFRP stiffeners on-site! (There is an example of steel girder web buckling countermeasures in Tokushima Prefecture)

The "In-situ VaRTM Method" is a innovative resin impregnation technique that utilizes vacuum technology, allowing for the production of high-quality CFRP reinforcement materials on-site, tailored to the shape of steel materials, through a new CF sheet bonding method. <Strengths of the Method> 1. Three-Dimensional Reinforcement Materials ● Three-dimensional reinforcement materials, similar to ribs, can be produced on-site, enabling integration with existing steel structures. This is something that was not possible with conventional CFRP reinforcement methods but can be achieved with the On-Site VaRTM Method. 2. Ultra-Short Construction Period and Cost Reduction ● Reinforcement for one location of steel corrosion can be completed in a standard of 3 to 4 days (a 70-80% reduction in construction time compared to conventional CF sheet bonding methods), allowing for efficient steel reinforcement. ● Due to the shortened construction period and increased efficiency, costs can be reduced by 20-30% compared to conventional CF sheet bonding methods. 3. Measures Against Poor Curing During Resin Curing ● During curing, uncured resin is covered with a film, preventing issues such as amine brushing that can lead to poor resin curing. 4. Others ● The On-Site VaRTM Method is a unique method developed by Toray. ● It received the Minister of Economy Award at the 6th Infrastructure Maintenance Awards. 　● Approved as a new repair and reinforcement method by Japan Ministry of Land, Infrastructure, Transport and Tourism. *For more details, please download the PDF or feel free to contact us.

  • Renovation and repair methods

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【Pin Foundation Construction Example】A place where valuable flora and fauna inhabit.

【Pin Foundation Construction Example】A place where valuable flora and fauna inhabit.

Simple basic construction method for NETIS registration! Introducing examples of construction in areas where valuable flora and fauna inhabit.

We will introduce an example of the Pin Foundation Method in a location where valuable flora and fauna reside. Conventional foundation methods, which involve excavating the ground and pouring large concrete blocks, cause significant environmental changes to the flora and fauna living in the area. In our method, only small-diameter steel pins are driven in through fixed blocks, so there is no alteration to the ecosystem of the valuable flora and fauna. [Case Study] ■ Okikubugawa Promenade (Okinawa Prefecture) ■ Structure: Effective width 1.2m, column pitch 2.5m ■ Materials used: - Handrails/Floorboards/Structural materials: FRP ■ Foundation type: DP-100/DP-L/SP For more details, please refer to the catalog or feel free to contact us.

  • Civil Engineering Method
  • Ground foundation construction method
  • others

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