Website renewal (cs21.jp)

Surface protection of newly constructed concrete structures (against carbonation, salt damage, freeze damage, etc.) can be achieved with a single application of liquid material. No need for watering before and after application, ensuring good workability.

CS-21 Series Products: CS-21 Neo (NETIS: CG-160013-VE Utilization Promotion Technology, Liquid) is applied to hardened concrete surfaces to fill fine cracks and voids, such as construction joints, which are difficult to visually detect from the surface, thereby densifying the surface layer. Additionally, through ongoing reactions under moisture supply from rainwater and other sources, it fills newly generated fine voids after application, suppressing the progression and expansion of cracks. These properties help maintain the integrity of the cover concrete and suppress the intrusion of water and various deterioration factors (steel corrosion) over the long term. Since it eliminates the need for post-application watering (wet curing), which was essential with conventional materials, it offers excellent workability and is used for surface protection measures to further enhance the quality and durability of newly constructed concrete. [Construction Achievements] 311 cases [Ministry of Land, Infrastructure, Transport and Tourism: 150 cases, Other Public Works: 118 cases, etc.] - Aggregation Period: 2017 (Heisei 29) to September 2024 (Reiwa 6) [NETIS] Registration Number: CG-160013-VE Utilization Promotion Technology - Technology Name: Silicate-based Surface Penetrating Material CS-21 Neo

• Concrete curing material
• Reinforced concrete construction
• Concrete construction

Measures for improving the durability and extending the lifespan of existing structures (concrete in the surface layer that has undergone carbonation), using a silicate-based surface impregnation method and a surface protection material with good workability.

CS-21 Series Products: CS-21 Builder (reactive silicate-based surface impregnation material, two-component mixed type) is applied to concrete surfaces to fill existing fine cracks and voids, thereby densifying the surface layer. Additionally, through ongoing reactions under moisture supply such as rainwater, it fills newly generated fine voids after application, suppressing the progression and expansion of cracks. These properties help maintain the integrity of the cover concrete and suppress the intrusion of water and various deterioration factors (steel corrosion) over the long term. It is ideal for surface protection during repairs as it can replenish the calcium hydroxide that is lacking in existing concrete from the additives. Furthermore, there is no need to apply the two components separately, and the watering after material application, which was essential with conventional materials, can be omitted, resulting in excellent workability. It is used for surface protection measures to improve the durability and longevity of existing structures. [Construction Achievements] 114 cases [Ministry of Land, Infrastructure, Transport and Tourism: 14 cases, other public works: 87 cases, etc.] Aggregation period: 2017 (Heisei 29) to September 2024 (Reiwa 6) [NETIS] Registration Number: CG-170009-A; Technology Name: Two-component mixed silicate-based surface impregnation material CS-21 Builder

• Reinforcement and repair materials
• Waterproofing work
• Renovation and repair methods

Water stopping, waterproofing, surface protection, cross-section repair, crack repair, and waterproof treatment of construction joints and wooden formwork for concrete structures, CS-21.

CS-21 is a colorless and transparent aqueous solution of inorganic nature. Developed by Aston Co., Ltd. in 1993, it is a domestically produced material. ■Features: Contains reactive components that enhance hydration, demonstrating effectiveness regardless of the age of the concrete. ■When applied to the surface of concrete, it fills fine cracks and voids, such as construction joints, which are difficult to see visually, thereby densifying the surface layer. Additionally, through ongoing reactions under moisture supply from rainwater and other sources, it fills newly generated fine voids after application, suppressing the progression and expansion of cracks. These properties help maintain the integrity of the cover concrete and suppress the intrusion of water and various deterioration factors (such as steel corrosion) over the long term. ■In the civil engineering field, it is applied for preventive maintenance against water penetration, neutralization, salt damage, freeze damage, etc., as well as for surface protection methods and durability improvement measures for cracks and construction joints. In the architectural field, it is used in waterproofing methods for new constructions (such as rooftop parking lots, basements, water tanks, etc.). ■Material classification: According to the design and construction guidelines (draft) for silicate-based surface impregnation methods in Concrete Library 137 of the Japan Society of Civil Engineers, it is classified as a "reactive silicate-based surface impregnation material." In the old classification of the surface protection method design and construction guidelines (draft) in Concrete Library 119, it is categorized as "sodium silicate-based surface impregnation material" based on its main component, and it corresponds to "when intended for waterproofing" based on construction specifications.

• Reinforced concrete construction
• Concrete construction
• Renovation and repair methods

By spraying the liquid material "CS-21" on the concrete joint surface, it prevents water leakage from the joints (suppressing the intrusion of water and deterioration factors).

When pouring concrete joints, after spraying and allowing the liquid material "CS-21" to penetrate the surface of the already poured concrete, the subsequent concrete is poured, preventing water leakage from the joint (suppressing the intrusion of water and deterioration factors). Technical Proposal Document (Example) Joint Treatment https://www.cs21.jp/top/method/uchitugi/

• Reinforced concrete construction
• Concrete construction
• Waterproofing work

Measures to improve the durability of concrete joint connections.

By applying the liquid material "CS-21" along the concrete joints, the intrusion of water and deterioration factors from the joints is suppressed. *It can also be applied to fine cracks (approximately 0.2 mm or less) that are not subject to injection methods and minor cold joints (those with color differences but without clear separation). Technical proposal document (example) Treatment of joints https://www.cs21.jp/top/method/uchitugi/

• Reinforcement and repair materials
• Reinforced concrete construction
• Concrete construction

Concrete waterproofing methods (for parking lots, rooftops, basements, etc.). 10-year warranty available, with over 1,000 cases and more than 2.3 million square meters of experience since 1994 (Heisei 6).

The waterproofing of concrete structures using "CS-21" does not involve forming a membrane (waterproof layer) on the surface of the concrete like traditional membrane waterproofing. Instead, it uses a colorless, transparent liquid material that is applied to and penetrates hardened concrete, making the concrete body itself the waterproofing entity. This method eliminates the need for waterproof and protective layers like those in membrane waterproofing, allowing for reduced load and shorter construction periods. Additionally, it boasts excellent durability, and since the concrete body can be directly visually inspected after construction, inspections and partial repairs after the start of use are straightforward. There are many advantages, such as not needing to remove existing coatings during reapplication. Construction achievements: As waterproofing for structures such as parking lots, rooftops, basements, and water tanks, there have been over 1,000 cases and more than 2.3 million square meters since 1994. *For more details, please visit the Concrete Body Waterproofing Research Association website (https://www.cswpd.jp/). *【Video】Introduction to the CS-21 Concrete Waterproofing Method https://www.cswpd.jp/downloads/movies/

• Coating film waterproofing material/permeable waterproofing material
• Coating film waterproofing material/permeable waterproofing material
• Waterproofing work

Measures for preventing water leakage in concrete and improving the durability of cracks and construction joints!

CS Mini is a spray bottle type of "CS-21." By applying it in advance to areas prone to leakage, such as construction joints, it suppresses the formation of voids at the concrete (mortar) interface and prevents water leakage. *For treatment of construction joints with "CS-21," please refer to the technical documentation: CS-21 Construction Joint Treatment. By applying it from the surface along cracks and construction joints, it suppresses the intrusion of water and deterioration factors (steel corrosion) from cracks and joints, thereby improving durability. *For measures to enhance the durability of cracks and construction joints using "CS-21," please refer to the technical documentation: Measures to Enhance Durability of Cracks and Construction Joints Using CS-21 Coating Method.

• Coating film waterproofing material/permeable waterproofing material
• Coating film waterproofing material/permeable waterproofing material
• Reinforcement and repair materials

A concrete crack repair material that restores aesthetics and improves durability with a simple procedure of application and rubbing, making repair marks less noticeable.

Simple Repair Material for Cracks in Concrete The "CS-21 Crack Repair Set" is a method for repairing cracks that occur in concrete by applying CS-21 Clear and incorporating CS Putty, which improves durability and restores aesthetics. The tools required for construction include a brush, metal spatula, rubber spatula, scraper, sandpaper, and cloth, and no special tools are needed. For usage instructions (construction steps), please download the leaflet (which includes the construction steps) or watch the YouTube video (https://www.youtube.com/watch?v=7agynSSmzg0). Total shipments: Over 10,000 sets.

• Reinforcement and repair materials
• Renovation and repair methods

Are you making progress on measures for the "2024 Problem"? The management of drivers' working hours is becoming stricter, and in the logistics field, reducing "waiting time for loading" has become an urgent issue. To address this challenge, our company, Hotron, proposes the "Vehicle Detection Ultrasonic Sensor 'HM-UX2'," which instantly grasps the availability of loading bays. The 'HM-UX2' contributes to the resolution of waiting times by accurately understanding the availability status, reducing unnecessary waiting and queuing, and shortening waiting times, thereby alleviating the burden on drivers! By replacing the "eyes" of your loading bay management with this high-precision sensor, why not start taking measures against the "2024 Problem"? Take a look at the product features: "Can it accurately detect availability?" "Can we really use it in our company?" "I just want to know the cost, even if it's an estimate." If you have any questions or requests, please feel free to consult us first.

The non-contact beam touch sensor "HA-T401/HA-T520" has a compact detection range, making it an ideal automatic door sensor for installation on automatic doors facing narrow corridors or busy streets. Depending on the application and installation location, you can choose between "non-vision mounting type" and "non-vision built-in type." 【Features】 ● With the beam touch sensor, you can open and close the automatic door simply by bringing your hand close without touching it, ensuring hygiene. ● Depending on the installation environment, such as single sliding or bi-parting doors, the detection range can be set in four configurations: left, center, right, and a total of 12 spots. ● Two types of activation row settings are available to reduce unnecessary opening and closing of the automatic door due to cross traffic, contributing to energy-saving effects. ● The touch switch and infrared sensor are integrated, allowing for a switch between beam touch and infrared sensor with a single model. 【Recommended for such locations!】 ☑ Entrance facing a busy corridor ☑ Counter or sign near the door ☑ Buildings facing narrow corridors ☑ Buildings that prioritize aesthetics ☑ Hospitals and facilities that consider hygiene ☑ Large facilities with many doors ◎ For more details, please download the materials or contact us.

Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

Grabee is a next-generation monitoring solution equipped with new features specialized for forest fire and wildlife damage prevention, based on AI video analysis and location estimation technology developed at Guardian. In addition to the conventional location estimation function, it now includes flame identification and animal identification capabilities, enabling early detection and response to forest fires and wildlife damage. Furthermore, it supports mapping of fire areas and area calculations.

Syspro Inc. exhibited at the "General Affairs, Human Resources, and Accounting Week [Tokyo] within the 'HR EXPO'" held at Tokyo Big Sight from June 25 (Wednesday) to June 27 (Friday), 2025. Thanks to everyone, we had many visitors and were able to conclude the event successfully. We would like to take this opportunity to express our deep gratitude to all the attendees and the organizers.