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Seal Hard has a top-class domestic market share among concrete surface hardeners. Here are six reasons why it has been supported: - High dust-proof and wear resistance → It effectively stops concrete dust and also improves wear resistance. - Non-peeling floor → It strengthens by directly penetrating into the concrete, so there are no issues with peeling or lifting like with coated floors. - Cost → Compared to tiles and coated floors, it is a significant cost advantage. - Maintenance → Seal Hard requires no waxing or reapplication. Once applied, it provides a strong floor that lasts for a long time. - Responsible construction by certified contractors → The reason it has been supported among many surface hardeners is the assurance of quality and responsible construction. Professionals licensed from the U.S. come to the site and showcase their skills. The quality assurance is possible because they are craftsmen who have seen concrete floors for decades. - 10-year warranty → A major difference from other surface hardeners is this 10-year warranty. We can guarantee dust-proofing for ten years. Please choose Seal Hard with confidence.

Seal Hard is a penetrating concrete surface enhancement material born in the USA that provides a hard and crystal-like floor surface on concrete floors in stores, factories, and logistics centers. Unlike dust-proof paints, Seal Hard does not peel off and can provide a semi-permanent effect with just one application, leading to significant cost savings along with ease of maintenance. Maintenance of floors finished with Seal Hard only requires regular washing with water, and no waxing is necessary at all. Seal Hard is applied using methods tailored to the condition of the concrete at each site, depending on the surface condition of the concrete. Therefore, it is offered as a responsible installation by our company, which has received certification for installation techniques from the American company L&M. Seal Hard is available in different specifications and grades through several application methods. - [Standard Specification] Achieves a high level of dust-proofing and wear resistance. - [Seal Hard W] Achieves stronger dust-proofing and wear resistance. - [Seal Hard Premium] Achieves strength and gloss through polishing. - [Seal Hard FGS] Achieves the desired gloss through a floor polishing system. - [FGS Perma Shine] Achieves a marble-like finish through a floor polishing system.

We constructed the factory floor that was newly established between 2019 and 2020. We applied [Seal Hard W, Petrotex, SSP100] for a company that manufactures industrial robots. This company has incorporated various flooring solutions up to the present. As a result of continuing with painted floors, they were troubled by high costs, peeling, lifting, and oil stains. Our company had products that could contribute to solving these issues. Seal Hard specializes in preventing peeling and lifting. Furthermore, to achieve a stronger floor, we divided the construction period into two phases with a W specification, boasting 1.4 times the wear resistance of the standard specification. Petrotex, made from oil absorption-reducing and permeable materials, can reduce damage from water and oil, serving as a countermeasure against oil splashes in factories. Additionally, to suppress cracks, we performed joint cutting followed by joint filling. SSP100 is one answer to preventing debris blockage and handling induced joints. It is a micro-elastic joint filler that follows concrete shrinkage. In factories with heavy traffic, corner chipping is inevitable, and this product helps prevent that. This has resulted in one of the highest quality concrete finishing floors in Japan. With such a high-quality floor, maintenance becomes extremely easy.

We applied [Seal Hard + Joint Filling] to the floor of the hazardous materials warehouse. It is not an exaggeration to say that "when it comes to warehouses, Seal Hard is the choice," as this combination is widely adopted. There is no peeling or lifting, and customers are pleased with the cost aspect as well. This is why the equation of warehouse floor = Seal Hard holds true. What made me happy was that we also applied [Joint Filling] to the floor. The cutter joints often seen in warehouse sites are very effective in inducing concrete cracks, and I have witnessed this many times. When I visit a site after handover and look at the floor, I often see corner chipping and debris in the joints. I always think, "I want to fill the joints to make the floor more user-friendly." Our company also has the perfect material for joint filling. Its name is SSP100, a micro-elastic material that has good follow-up properties for minor cracks. Moreover, it cures quickly. It becomes walkable in about an hour, and it has excellent compatibility with Seal Hard, offering the benefit of shortened construction time. The material is polyurea resin, which is the leading joint filling material in the United States. In the long term, SSP100 has the capability to recover costs. Please experience the combination of Seal Hard + SSP100.

In 2019, we constructed a new floor for a warehouse. A company dedicated to preserving the quality of rice adopted the 【Seal Hard FGS】. The client's request was to keep the warehouse clean for the rice, specifically wanting a floor that would not show tire marks or dust. Previously, they had a green painted floor, which resulted in peeling and flaking, and left tire marks. The client mentioned that strict inspections are conducted by the government for rice storage, and any issues could damage their credibility. They expressed a desire to pay attention to the floor, in addition to temperature and humidity control. Initially, we considered standard specifications for the construction, but after discussing with the client, they requested a floor that was glossy and had a sense of cleanliness, leading us to use the FGS specifications. The standard specifications do not exhibit gloss immediately after handover, maintaining the appearance of the bare concrete. When there is gloss, the impression upon entering the building is entirely different. It transforms from the dark impression of bare concrete to a bright, clean appearance. In buildings like warehouses and factories, which often have a dark image, the impression of the floor becomes even more important. I still remember the client expressing their happiness after the construction, saying, "There is no dark atmosphere, and it has become beautiful." We highly recommend considering the FGS specifications for your warehouse or factory.

The "Nagao Skate Park" in Sanuki City, Kagawa Prefecture, was established 20 years ago. Built at a significant size of approximately 900m2, it became a well-known park for skaters in western Japan long before skateboarding became a trend. However, it has recently gained notoriety for its rough surface, with some people even referring to it as a "grater" due to the coarse concrete surface. Sanuki City allocated a budget and commissioned Tsumura Manufacturing Co., Ltd. and Willby Co., Ltd., which provide unique renovation methods. Using a large American grinding machine, the rough concrete surface was shaved down, and the sunken areas were filled with a special resin made in the USA that can be used outdoors, creating a smooth surface. Additionally, a penetrating surface hardener called "Seal Hard" and a water absorption inhibitor named "Aqua Pel Plus" were applied to enhance wear resistance and rainwater resistance. Finally, a test run on a skateboard was conducted to check for proper grip. The surface not only returned to a smooth finish but was also completed with long-lasting wear and rain resistance! A video showing the condition after the renovation has been uploaded to YouTube. With the permission of the sk8 on channel, we will introduce it in the related video below.

The "Seal Hard Skate Park Specification" is a concrete surface reinforcement finish that is resistant to deterioration outdoors and maintains a smooth skating surface for a long time. Using a large grinding machine, the surface of the concrete pavement is smoothed, and with the penetrating surface hardener "Seal Hard" and the water absorption inhibitor "AquaPel Plus," a concrete surface that is resistant to wear and less prone to deterioration from rainwater is created. This method has been adopted not only for new constructions but also at the "Nagao Skate Park" in Sanuki City, Kagawa Prefecture, which was opened 20 years ago. The rough pavement surface has been transformed into a smooth surface, resulting in a durable pavement with wear resistance and rainwater resistance! After construction, it has been tested with skateboards to confirm the appropriate grip feel. 【Features】 - Utilizes the concrete surface hardener "Seal Hard," which has a proven track record in floor finishes for logistics facilities, significantly improving the wear resistance of the concrete surface. - A skate park-specific specification that combines "grinding" to remove weak surface layers in advance and the water absorption inhibitor "AquaPel Plus" to resist rainwater. *For more details, please download the materials or feel free to contact us.

The "Higashi Kanazawa Sports Plaza Skate Park" located in Kanazawa City, Ishikawa Prefecture, was installed in a retention basin. Although it should have undergone surface repairs every 2 to 3 years, the deterioration of the surface was severe, and falling would inevitably lead to bleeding. Being in a retention basin, it was also prone to accumulating rainwater, creating an environment that is particularly damaging to concrete. With the cooperation of the Kanazawa City Skateboard Association, the city allocated a budget for surface renovation. Using a large American grinding machine, we ground down the rough concrete surface, filled in the depressions with a special resin made in the USA that can be used outdoors, and created a smooth surface. Additionally, we improved wear resistance and rainwater resistance by applying a penetrating surface hardener called "Seal Hard" and a water absorption suppressor called "Aqua Pel Plus." Finally, we tested the surface with a skateboard to ensure it had the appropriate grip. Not only did it return to a smooth surface, but it was also finished to be a long-lasting surface with wear and rainwater resistance! Local skaters expressed their delight, saying, "I've been skateboarding for 15 years, but this is the first time I've experienced such a surface." Even two years after the construction, the smooth surface continues to be maintained.

NIX Street Sports Park" located in Toyama City, Toyama Prefecture is a well-known park that was established as a large-scale facility in the Hokuriku region and has produced bronze medalists for the Tokyo Olympics. However, starting from its third year, the surface began to deteriorate significantly, and by the eighth year, the poor condition of the surface, which was comparable to asphalt, led to a reputation of "a well-designed park but with the worst surface." During the renovation work, a large American grinding machine was used to grind down the rough concrete surface, and the sunken areas were filled with a special resin from the U.S. that can be used outdoors, creating a smooth surface. Additionally, a penetrating surface hardener called "Seal Hard" and a water absorption inhibitor named "Aqua Pel Plus" were applied to enhance wear resistance and rainwater resistance. Not only did the surface become smooth again, but it was also finished to be a long-lasting surface with wear and rainwater resistance! Since Hokuriku is particularly known for its high precipitation, such specifications are essential for concrete parks. After the construction, local skater and Paris Olympic participant Kana Nakayama announced on Instagram, "It has really become easier to skate!

The "Sasebo Park Skate Park" in Sasebo City, Nagasaki Prefecture, was opened a year ago. "Is it already in need of repairs after just one year??" I think many people feel this way. The park's sections and concrete surfaces deteriorate faster than expected if they lack durability. At this time, we are repairing the sections (by Tsutomu Manufacturing) at the Sasebo Park Skate Park, while also using a large American grinding machine to smooth out the rough concrete surface, creating a flat surface. Additionally, we applied a permeable surface hardener "Seal Hard" and a water absorption inhibitor "Aqua Pel Plus" to improve wear resistance and rainwater resistance. Finally, we tested it with skateboards to confirm whether the grip feels appropriate. After the renovations, local skaters expressed their surprise, saying, "I thought the surface itself was fine, but after skating on the renovated surface, I was amazed at how much better it felt than I expected!" "Why is a new park already in such bad shape?" This is the most common question I hear from various park managers. We need to seriously consider "the aging of parks" before such situations arise!

We would like to introduce the importance of the concrete surface finish "Skate Park Specification" that our company is currently constructing, along with some examples. Do you have any concerns about the concrete surface at your skate park? - The concrete is deteriorating, and before you know it, the surface has become rough in just a few years. - It is difficult to secure a budget for repairs, and it is being used in its damaged state. - There is a risk of injury due to the poor surface condition. - It is not possible to create a safe and smooth skate park. Many of the above issues are caused by simply pouring concrete without further treatment. Our company aims to solve these challenges and create parks where "the surface lasts longer" and "users can skate safely." In setting up the park, we have created a "Construction Case Collection" and a "Surface Specification Document" for the Skate Park Specification, so that those involved can gain a better understanding of skate parks. We can carry out construction for both "new installations" and "renovations." Our staff includes skaters who aspire to be professionals. Currently, we feel that this specification is suitable for skateboard plazas. *For more details, please download the materials or feel free to contact us.

Many skate parks are made with concrete surfaces, but they have not been finished in any particular way until now. As a result, they remain vulnerable to erosion from rainwater and wear from skating. Even with proper maintenance, the concrete surface deteriorates and becomes rough due to rainwater erosion in just 2 to 3 years, gradually making it difficult to skate and transforming it into a dangerous surface that is prone to injuries such as scrapes from falls. We have consolidated the know-how from our previous sports facility projects and concrete flooring projects to create the optimal "Skate Surface Specification Standard Diagram" for skate parks. Please make use of it in your future skate park designs! *The surface specification document can be found by scrolling down to the "CAD List." If you have any concerns, please feel free to contact us. We are confident that we can be of assistance.

Sumida Skateboard Park" located in Sumida Ward, Tokyo, is a long-awaited park for skaters that opened in April 2024. However, shortly after its opening, concrete dust began to emerge, leading to harsh criticism from skaters on social media, prompting inquiries from concerned officials in Sumida Ward. During the renovation work, we used six times the usual amount of seal hardener for new constructions, resulting in a smooth, dust-free surface. Not only did it restore the surface to a slick finish, but it also created a durable surface with wear resistance and rainwater resistance! After the work was completed, the officials praised us, saying, "The surface has changed dramatically! The finish of the skate park surface is truly important.

Are the safety measures for setting up a skate park really thorough? One is "mandatory helmet use." This is certainly very important for protecting one's body. Another important aspect is "preventing the deterioration of the concrete surface." Currently, there is definitely a stronger awareness regarding "concrete reinforcement" in skate parks. A commonly used material is 'surface reinforcement agents.' In terms of actually reinforcing the concrete itself, they are effective. However, one common issue with all surface reinforcement agents is that they are vulnerable to rainwater! When exposed to rainwater, the effectiveness diminishes in a short period. What differentiates our company from others is that we use 'water absorption suppressants (Aqua-Pel Plus).' This achieves a high level of safety and a long-lasting surface. It is a surface that has received positive feedback nationwide, with many saying, "This surface is necessary for a skate park." *For more details, please download the materials or feel free to contact us.*

AKAKEN PARK," located in Nakanata Town, Kahoku District, Ishikawa Prefecture, is the long-awaited park in Ishikawa Prefecture that opened in January 2025. Originally, it was set up in the same location, but due to circumstances, it had to close in November 2024. Ishikawa Prefecture is particularly susceptible to weather conditions, and an indoor skate park is an important practice space for users. Amidst this, it was decided to renew and reopen in a separate vacant area with the cooperation of many users. Our employees also used the old AKAKEN PARK, so we thought we could help and proposed pavement renovations. During the renovation work, there were remnants of tile adhesive, but through repeated grinding and polishing, we were able to finish the surface to a quality even better than when it was newly constructed. The park features a variety of sections, making it enjoyable for everyone from small children to adults. At the opening, many users expressed their happiness, saying, "This surface is amazing!

L&M CURE is a non-film-forming, non-residual concrete curing agent that can be used in its concentrated form. Common issues with water curing include "color unevenness" and "cracking." 【CURE】 helps to reduce these problems! It minimizes color unevenness caused by water pooling, and the curing period is generally about 3 days. ◆ Features and Benefits of L&M CURE 1. Odorless, allowing application in areas without ventilation. 2. Can be applied in areas where non-residual performance is crucial. 3. Does not leave stains on concrete. 4. Environmentally friendly with low VOC. 5. Easy to apply with a sprayer. 6. Compared to general curing, it improves the compressive strength of concrete. 7. Can be applied not only to horizontal surfaces but also to vertical surfaces. 8. Significantly shortens construction time with a single application.

L&M CURE is a non-film-forming, non-residual concrete curing agent that can be used in its concentrated form. Common issues with water curing include "color unevenness" and "cracking." 【CURE】 helps to reduce these problems! It minimizes color unevenness caused by water pooling and generally has a curing period of about 3 days. ◆ Features and Benefits of L&M CURE 1. Odorless, allowing application in areas without ventilation. 2. Can be applied in areas where non-residual performance is critical. 3. Leaves no stains on the concrete. 4. Environmentally friendly with low VOC. 5. Easy to apply with a sprayer. 6. Improves the compressive strength of concrete compared to general curing methods. 7. Can be applied not only to horizontal surfaces but also to vertical surfaces. 8. Significantly shortens construction time with a single application.

The "NIX Urban Sports Park" was established in Toyama City, Toyama Prefecture in 2023. It is a park supervised by Kaede Nakayama, a bronze medalist at the Tokyo Olympics. During the construction of the new facility, a permeable surface hardener from another company was used for the concrete surface finish. However, after one year, surface deterioration began, and it became rough. When we proposed the Seal Hard SKP specification to the design team at NiX JAPAN, they decided to take action before significant deterioration progressed, and we proceeded with the construction. Since the area from the entrance fence to the first joint was left unconstructed, it allows for comparison and observation between the constructed and unconstructed areas. Although only one year had passed since its opening, the surface has been finished to a quality exceeding that of the original construction!