ピングラウト協議会 List of Products and Services

The "Pingraut W Stopper Method" is a technique devised to reliably repair water leaks from separators used in formwork in the underground portions of building construction and civil engineering works. By mechanically securing a packing using the holes in the separator and the bolt tip, and injecting a hydrophilic one-component polyurethane resin called "NL Paste," it seals the "gaps" that cause water leaks, making it a simple and clean method that does not require skilled labor, in contrast to traditional methods that involve chiseling, drilling, and rapid-setting mortar. 【Features】 ○ There is no "collapse of gaps" due to chiseling or drilling, and the ability to inject a certain amount of resin allows for a high probability of water stopping. ○ No special tools are required, and the work procedures are simple and clear, making it possible for anyone to carry out the installation. ○ Compared to conventional methods, it reduces labor and thus lowers costs. ○ The speedy installation minimizes the impact on subsequent processes within a short period. ○ There is almost no noise or dust generation, and minimal outflow of resin and mortar debris after construction. For more details, please contact us or download the catalog.

• Reinforcement and repair materials

The "Pingraut PW System" is a preventive maintenance method that replaces traditional water-stopping boards and water-expanding seals by embedding hollow members (PW hoses) in the concrete joint in advance. Approximately four weeks after the completion of the subsequent concrete work, a water-stopping material, hydrophilic one-component polyurethane resin "NL Paste," is injected to reliably fill the voids in the concrete (water leakage) and achieve water-stopping at the joint (Patent No. 5284888). 【Features】 ○ Underground water-stopping technology that supports long-lasting structures ○ Reliable water-stopping with simple construction ○ Can fill even fine gaps ○ Excellent adhesion to concrete surfaces ○ Superior durability For more details, please contact us or download the catalog.

• Reinforcement and repair materials
• Water stop
• grout

"Pingrout" is a water-stopping method using NL paste (hydrophilic one-component polyurethane resin) that was developed in 1985 and has over 5,000 successful applications to date. The "Smart Water-Stopping Method" is a new technique of Pingrout that incorporates low viscosity NL paste and a high-pressure injection method. [Features] - Water-stopping marks are not noticeable - Can be constructed in a short period - Five standard methods are available, allowing selection according to the cause and situation of water leakage For more details, please contact us or download the catalog.

• Reinforcement and repair materials
• Drainage and water removal
• grout

The Pingrout water stop method is a hydrophilic one-component polyurethane resin injection water stop method jointly developed by Shimizu Corporation and Takeda Pharmaceutical Company in 1985. (Currently, the material manufacturer is Daiflex Co., Ltd.) The water stop material used in the Pingrout water stop method, hydrophilic one-component polyurethane resin (product name: NL Paste), undergoes a slow chemical reaction upon contact with water, generating carbon dioxide while foaming and curing. This expansion pressure during foaming is utilized to fill the resin into cracks in concrete and discontinuous surfaces at joints to stop water. 【Features】 - Can fill even fine cracks - Excellent resistance to acids, alkalis, and saltwater - Can be applied with simple tools like an injection gun - Safe for use in drinking water facilities (uses high-viscosity materials) - Obtained formaldehyde emission classification F☆☆☆☆ For more details, please contact us or download the catalog.

• Other civil engineering works
• Roof and gutter construction
• grout