On commercial facility floors! Seal Hard Premium ◎ Case Studies ◎ Polishing Specifications
The floor of the Super Center PLANT Kurobe store was constructed with "Seal Hard Premium." It features a combination of good appearance, high durability, and low maintenance.
The supercenter PLANT Kurobe store (Toyama Prefecture), which opened in October 2020, has been constructed using Seal Hard Premium. Since Seal Hard has been adopted for store floors by PLANT for over 20 years due to its lower construction and maintenance costs compared to P tiles, recent stores have shifted to long sheet vinyl and P tiles for reasons such as lack of color and cleanliness. The reason Seal Hard was adopted again for the Kurobe store is due to advancements in polished concrete technology, which allows for the creation of clean-looking floors. This project was undertaken by our construction department as the main contractor, with a focus on concrete quality from the very beginning. During the pouring process, we used "Moacrite: fluidizing without adding water" and "E-CON: pouring aid" to reduce trowel marks and cracks, aiming for a uniform appearance. At the finishing stage, we performed "SSP-100: joint filling" to prevent debris accumulation and corner chipping in the joints. The PLANT Kurobe store boasts one of the highest levels of concrete flooring in commercial facilities in Japan. Seal Hard contributes to both cost efficiency and maintenance while achieving a beautiful floor finish. We hope you will visit the PLANT Kurobe store.
basic information
Seal Hard is a colorless, odorless, and environmentally friendly concrete surface hardener that is non-polluting. It is a colorless, transparent liquid primarily composed of sodium silicate, which penetrates the surface of the concrete after application and reacts chemically with the concrete components to produce a glass-like substance on the surface. This chemical reaction continues over time with regular water washing that replenishes moisture. Concrete reinforced with Seal Hard becomes more beautiful and glossy with use and regular water washing over the years. Even when a gloss develops, it does not become slippery. Seal Hard Premium is widely used in commercial facilities and public property floors. In addition to the commercial facility examples introduced this time, there are numerous achievements in public and private properties, including art museums, museums, and logistics centers. The application of Seal Hard is done in two parts. The first application can be done after the eighth day following concrete placement, and the second application can be done at least 14 days after the first application. Due to the inclusion of polishing in the specifications, the surface is finished to be smooth and glossy from the time of completion, and maintenance is very easy. It results in a glossy floor while retaining the texture of the concrete.
Price range
Delivery Time
Model number/Brand name
LATICRETE International, Inc. (Connecticut, USA)
Applications/Examples of results
<<Seal Hard Premium>> Recommended for commercial facilities, art museums, and museums that traditionally used P tiles, long sheets, or ceramic tiles due to its polished concrete finish with a glossy appearance. It is also recommended for logistics centers, warehouses, factories, and situations where a low-maintenance, clean-looking floor is desired while keeping the concrete finish as is. Adoption Records (in no particular order, titles omitted) ◆ Logistics Facilities Mediseo, Atoru, Evalus, PALTAC, Hokushou, Seikousha, Yaoko ◆ Commercial Facilities PLANT Kurobe Store, Paul Smith Ginza Store, Phoenix Sea, Shinmai Media Garden ◆ Public Facilities Hirosaki Brick Warehouse Museum, Kanazawa 21st Century Museum of Contemporary Art, Hitachi City New City Hall, University of Tokyo Dormitory, Aomori New Athletics Stadium, Taga Town Community Center, Minna no Mori Gifu Media Cosmos Note: When pouring concrete, please smooth it with a mechanical trowel. Trowel marks and color variations will affect the final appearance, so we recommend using E-CON or Moar Concrete, etc. It is also advisable to provide cutter joints at 4-5 meter intervals to prevent cracking. For processing the cutter joints, we recommend the joint filling method SSP-100.
Detailed information
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[After the concrete pit cover installation] We have tried to match the glossiness as closely as possible. When you visit the store, please take a look at these fine details of craftsmanship.
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[Before Construction] Before construction, there was laitance on the concrete surface, giving it a matte impression. When touching the floor with your hand at this time, your hand becomes completely white. It is a fragile part that can be removed with just a light rub.
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【Before Construction】 Bird droppings commonly seen at large sites. The main contractor also pays attention to bird intrusions, but such things can happen. We always make an effort to remove them as much as possible during the polishing cleaning process.
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【Joint Filling】 A floor that has only been cut will accumulate dirt in the joints. Cleaning out the dirt from joints that are several meters long is truly a struggle. Additionally, corner chipping occurs, and the wobbling of wheels, such as those on carts, becomes noticeable. Joint filling resolves these issues. SSP-100 is a polyurea resin made in the USA, applied through a specialized machine. It is a micro-elastic filler that follows the subtle movements of the joints while maintaining a certain hardness, thereby reducing the impact on the joint corners when wheels pass over them. Considering future maintenance, I believe joint filling is indeed a very effective measure.
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【Water Washing】 In large-scale sites where there are time constraints, two polishers may be used simultaneously. Just washing with water can effectively remove laitance and leave a clean finish.
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【Completion Photos】 This is a photo taken immediately after the floor finishing. The gloss is so pronounced that the lighting reflects sharply. With just one finishing technique, the design quality of concrete can be elevated to this level. Many commercial facilities in the United States feature this type of glossy concrete finish.
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Seal Hard When it comes to large-scale projects, there are piles of materials. While many domestic surface hardeners come in one-gallon cans, Seal Hard stands out with its impressive yellow can.
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【Seal Hard Application】 We will thoroughly apply it even at large sites. At this site, we also used a sprayer for the application. I will include a photo of that below.
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【Residue Removal】 After applying the seal hardener, the residue was removed. After performing residue removal with a polisher and vacuum, water wiping with a mop was also done.
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【Seal Hard Coating - Brush Finish Surface】 The sloped areas with a brush finish are applied using a sprayer. If applied with a mop, the mop fibers will remain, so a sprayer is best. It has been thoroughly penetrated.
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