SIKA JAPAN Ltd. List of Products and Services

The "CV Spray Method (SQS Method)" is a long-lasting method for open channels using ultra-fast curing polyurethane resin. This highly durable material is used in the waterproofing and rust prevention fields for concrete and steel materials. The channel method has been newly developed as a long-lasting method that includes substrate treatment materials. 【Features】 ■ Instant curing material: The material cures in seconds, allowing for high construction capability. ■ Improvement of roughness coefficient: An improvement of about 30% is expected compared to existing concrete. ■ Durability: The coating is expected to have weather resistance and durability. ■ Reduction of LCC: During the next renovation, "substrate adjustment work" can be minimized, significantly reducing costs. *For more details, please download the PDF or feel free to contact us.

The "Regitect BT-JW Method" is a waterproofing and anti-corrosion lining method for water supply facilities that combines an environmentally friendly epoxy resin primer "Sika Elastic Regi EP-F Primer," which strongly adheres to concrete substrates, and a polyurea resin spray topcoat "Sika Elastic 5000 JW," which boasts excellent mechanical strength, over 200% elongation, and allows for speedy application. As seismic reinforcement of water supply facilities is promoted to secure lifelines, we believe that in terms of the same objective of "securing water = preventing leaks," the waterproofing performance, defined by "elongation and strength," is crucial among the required performance characteristics of lining materials. An appropriate balance of elongation and strength protects the concrete itself and prevents leaks. 【Features】 ■ Excellent safety - All products are solvent-free - Does not pollute water quality ■ Superior waterproofing and durability - Excellent chemical resistance - Excellent crack-following ability *For more details, please download the PDF or feel free to contact us.

The high polymer urethane rubber film formation technology using the super-fast curing spray-up system allows for the coating of structures with high performance, achieving reliable waterproofing and protective effects. This is the "CV Spray Method" from Sika Japan. The pre-waterproofing construction can be applied directly to retaining walls such as SMW without creating a substrate, thus reducing the time and cost required for waterproofing substrates. Additionally, the post-waterproofing construction adheres firmly to the structure, eliminating the need for protective materials during backfilling. With a mechanically managed construction system, a consistent amount of material is supplied, ensuring uniform and high-quality film properties that are not affected by external temperatures or working conditions. 【Features】 ■ Low-cost method that reduces construction time and costs ■ Seamless complete waterproofing for complex shapes ■ Uniform, high-performance membrane waterproofing ■ Excellent durability *For more details, please download the PDF or feel free to contact us.

We have developed the "RT Wangard Method," a concrete spalling prevention specification that satisfies "performance standards" without using fiber sheets such as glass cloth or vinylon mesh as tensile members. Compared to the continuous fiber sheet method that adheres triaxial vinylon fiber sheets with impregnated adhesive resin, this method allows for a shorter construction period. It effectively prevents spalling simply by applying the material without using continuous fiber sheets, making it effective for complex shapes like I-beams. Polyurethane resin itself has been used as a waterproofing material in construction for nearly 50 years, and its durability has been confirmed in comprehensive projects by the Ministry of Land, Infrastructure, Transport and Tourism. 【Features】 ■ Shortened construction period ■ Excellent performance (concrete protection) ■ Proven durability ■ Stable construction due to unique material technology ■ Aesthetic appeal *For more details, please download the PDF or feel free to contact us.

The "Regitect GS-T Method" is a high-performance waterproofing method that combines ultra-fast curing polyurethane urea resin waterproofing material with a special asphalt paving adhesive. The waterproof membrane formed by the polyurethane urea resin is expected to have long-term durability. Additionally, the waterproof membrane created by a special machine spray system ensures stable quality. Furthermore, the special asphalt serves as the paving adhesive, providing excellent adhesion to the pavement. 【Features】 ■ The waterproof membrane formed by the polyurethane urea resin is expected to have long-term durability. ■ The waterproof membrane formed by the special machine spray system ensures stable quality. ■ The special asphalt serves as the paving adhesive, providing excellent adhesion to the pavement. ■ After applying the paving adhesive, it can be paved in a short time, reducing the construction period. *For more details, please download the PDF or feel free to contact us.

We have developed the 'RT Wangard Clear Method,' which prevents the deterioration of concrete due to neutralization and salt damage, and possesses a function to prevent the peeling of transparent concrete that satisfies the "punching shear test performance" without using fibers as tensile members. Compared to the continuous fiber sheet method that adheres a triaxial vinylon fiber sheet with an impregnating adhesive resin, this method allows for a shorter construction period. By simply applying it without using continuous fiber sheets, it enables "concrete protection" and "peeling prevention," making it effective for complex shapes such as I-beams. Additionally, it can be completed in one day for small areas. 【Features】 ■ Visualization of deterioration status ■ Significant reduction in construction time ■ Excellent performance (concrete protection) *For more details, please download the PDF or feel free to contact us.

We have developed the "Regitect RT-1N Method," a specification for preventing concrete spalling that satisfies performance requirements without using a transition as a tension member. This method addresses the issue of reduced structural strength caused by the corrosion and rusting of rebar due to the penetration of water from rainwater and groundwater, as well as the infiltration of de-icing agents, airborne salt, and seawater. Being a spray application method, it easily adapts to complex substrate shapes like I-beams, significantly shortening construction time. 【Features】 ■ Excellent workability ■ Solvent-free resin ■ Stable coating properties ■ Superior coating performance *For more details, please download the PDF or feel free to contact us.

We have developed a waterproof coating specification, "RT Wangard Method," that satisfies the "performance standards" without using fiber sheets such as glass cloth or vinylon mesh as tension members. In addition to complying with the "punching test," it excels in concrete adhesion, crack resistance, salt resistance, and weather resistance, protecting structures from factors that cause concrete deterioration. Polyurethane resin itself has been used as a waterproof material in construction for nearly 50 years, and its durability has been confirmed in comprehensive projects by the Ministry of Land, Infrastructure, Transport and Tourism. 【Features】 ■ Shortened construction period ■ Excellent performance ■ Proven durability ■ Stable construction through unique material technology ■ Aesthetic appeal *For more details, please download the PDF or feel free to contact us.

The "CV Spray Method (SQS Method)" is a long-life construction method for concrete and steel materials using ultra-fast curing polyurethane resin. It is a surface coating method aimed at countering salt damage, water tightness (waterproofing), and alkali aggregate reactions in concrete components used in port and airport facilities, as well as roads and bridges, and can be applied to both new and existing structures. The coating material used gels and cures within 10 to 20 seconds, preventing dripping after spraying, and allows for walking in the work area within a few minutes. 【Features】 ■ Excellent salt resistance and water tightness (waterproofing) ■ Long-term durability with 3,000 hours of weather resistance in the Sunshine Carbon Arc Lamp Accelerated Weathering Test ■ Follows cracks up to 8mm wide ■ No leaching of harmful substances *For more details, please download the PDF or feel free to contact us.

We have developed the "RT Method," a concrete spalling prevention specification that excels in crack-following ability and concrete protection performance, without using fiber sheets such as glass cloth or vinyl mesh, while satisfying performance standards. This method addresses the issue of reduced structural strength caused by the corrosion and rusting of rebar due to the penetration of water from rain, groundwater, de-icing agents, airborne salt, and seawater, which can lead to explosive spalling. The ultra-fast curing urethane is consistently stable due to pressure, flow, and temperature management through our unique mechanical system, and it cures within seconds after application, making it largely unaffected by weather conditions such as temperature and humidity. 【Features】 ■ Shortened construction period ■ Excellent performance (concrete protection) ■ Stable construction through unique material technology *For more details, please download the PDF or feel free to contact us.

We have developed a waterproof coating specification called "RT Method," which excels in crack-following ability and concrete protection performance, without using fiber sheets such as glass cloth or vinylon mesh, while satisfying "performance standards." In addition to passing the "punching test," it also demonstrates excellent waterproofing, salt resistance, gas permeability, carbonation prevention, and weather resistance, protecting structures from factors that cause concrete deterioration. The ultra-fast curing urethane is sprayed using a unique mechanical system that manages pressure, flow rate, and temperature, ensuring constant stability. It cures within seconds after application, making it largely unaffected by weather conditions such as temperature and humidity. 【Features】 ■ Shortened construction period ■ Excellent performance ■ Stable construction and aesthetic quality through unique material technology *For more details, please download the PDF or feel free to contact us.