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"James B-007" is an epoxy resin putty that hardens even in underwater and damp conditions. It excels in adhesion on wet surfaces, providing a good hardened product without losing shape even when used underwater. It is suitable for applications such as fixing water guide plates in tunnels, sealing during tunnel joints, and managing water leakage from cracks. 【Features】 ■ Hardens even underwater and on damp surfaces ■ Ideal for rubber water guide and waterproofing work in tunnels ■ Excellent adhesion on wet surfaces ■ Maintains shape even when used underwater *For more details, please refer to the PDF document or feel free to contact us.

• Reinforcement and repair materials

The "Hawk Piton/Hawk Haken" is a low-pressure resin injection tool used in low-pressure resin injection methods. Due to the pressure of the spring, it injects slowly over time, allowing for reliable injection into deep cracks. Additionally, it allows for visual confirmation of the injection status, so if the injection material in the cylinder or capsule runs out before it hardens, new injection material can be added, and the injection can continue. 【Features】 ■ Slow injection over time due to spring pressure ■ Reliable injection into deep cracks ■ Visual confirmation of injection status ■ Used in low-pressure resin injection methods *For more details, please refer to the PDF document or feel free to contact us.

• Work tools

The "mesh hose" is a material that guides water along the leakage points, such as cracks accompanied by water leakage, to a drainage ditch without blocking the water flow. Made of soft polyester, it can be easily deformed, allowing for the guidance of water in complex shapes. Additionally, it can collect surrounding water leakage through its mesh, ensuring that filling materials do not enter the mesh, thus maintaining a water flow space. 【Features】 ■ Made of polyester ■ Soft hose shape allows for easy deformation ■ Capable of guiding water in complex shapes ■ Can collect surrounding water leakage through the mesh ■ Filling materials do not enter the mesh, ensuring a water flow space *For more details, please refer to the PDF document or feel free to contact us.

• others

The "Mesh Water Conveyance Method" is a technique that directs water from leaks and cracks along the leak points to a drainage ditch without blocking the water flow. By selecting the appropriate hose diameter, it allows for water conveyance that matches the flow rate, and since it conveys water without stopping it, there is minimal impact on the surrounding structure. This method is particularly effective in cases where there is a relatively large amount of leakage occurring linearly along joints or cracks, especially in tunnels where there is limited space in the inner cross-section. 【Features】 ■ The mesh hose can be freely deformed, allowing for complex water conveyance shapes. ■ By selecting the appropriate hose diameter, it allows for water conveyance that matches the flow rate. ■ Since it conveys water without stopping it, there is minimal impact on the surrounding structure. ■ It creates grooves on the surface of the structural body. ■ Particularly effective in tunnels where there is limited space in the inner cross-section. *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods

The "Low-Pressure Resin Injection Method" utilizes a syringe-type injector to inject at low pressure, low speed, and automatically, making it possible to inject into very fine cracks of less than 0.2mm by leveraging the capillary phenomenon of low-viscosity epoxy resin. The resin reaches the depths of the cracks, enabling the sealing of concrete. With a wide variety of products available, it can accommodate various types of cracks. Additionally, depending on the conditions at the site, it is possible to select injection tools and materials, allowing for repairs of any cracks or delaminations. 【Features】 ■ Uniform construction is possible through low-pressure, low-speed, and automatic continuous injection of low-viscosity resin. ■ A wide range of products allows for addressing various types of cracks. ■ The resin can reach the depths of the cracks, enabling the sealing of concrete. ■ Visual confirmation of the injection situation is possible. ■ The cylinder can be attached and detached multiple times for additional injections. *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods

The "water guide board rubber" has excellent followability and is suitable for handling leakage and seepage in tunnel shafts. Since it is embedded, it does not protrude from the structure, guiding leakage and seepage while ensuring the safety of vehicles in operation. Additionally, it has a small exposed surface area and is made of chloroprene rubber, making it suitable for use in cold regions. 【Features】 ■ Made of highly elastic chloroprene rubber ■ Excellent followability ■ Ideal for handling leakage and seepage in tunnel shafts ■ Ensures the safety of vehicles in operation ■ Small exposed surface area *For more details, please refer to the PDF materials or feel free to contact us.

• others

The Water Guide Method is a water diversion technique aimed at preventing leaks in existing tunnels and underground structures. It involves cutting grooves at leak points and installing chloroprene rubber water guide plates to direct water to drainage facilities. 【Features】 - Good followability of the water guide plate rubber - Structure that can withstand volumetric expansion - Can be installed in wet conditions - Easy to install *For more details, please contact us or refer to the catalog.

• others

The Pinning Dry Method is a supplementary and reinforcement technique that combines the removal of unnecessary moisture from the interior of concrete floor slabs reinforced with fiber-reinforced sheets such as carbon fiber or steel plates, along with an anchoring effect. It prevents bulging caused by backwater, which has been considered the biggest drawback of fiber sheets and steel plates. Furthermore, it enhances the adhesion of fiber sheets and steel plates by adding the physical adhesion of dry lock pins to the chemical adhesion of epoxy resin. 【Features】 ○ Achieves a beautiful finish after construction ○ Allows for easy maintenance and inspection ○ Reduces running costs ○ Can accommodate various applications ○ NETIS registration No. KK-020043 For more details, please contact us or download the catalog.

• Reinforcement and repair materials
• Renovation and repair methods