“Huiya Raised Access Floor and Konishi, a Century – Old Japanese Adhesive Enterprise, Reach Strategic Cooperation in the Field of Raised Access Floor Adhesives”
Changzhou Huiya Decoration Materials Co., Ltd. and Konishi Co., Ltd. of Japan have officially announced a strategic cooperation. The two parties will conduct in – depth collaboration around the application of raised access floor adhesives. The first cooperation project —— the 3,650 – square – meter WJ500 series GRC floor paving project in Tower C of Gaoxin Plaza, Xinbei District, Changzhou —— has been completed using Konishi’s KU928C – X one – component moisture – curing adhesive. Its actual performance shows highlights in terms of bonding strength, environmental protection properties, and construction efficiency.
1.Strong Bonding Between Metal and Steel Plate Bottom, Withstanding All Scenarios
Konishi KU928C – X glue exhibits outstanding adhesion on substrates such as wooden floors and steel support columns. Taking the bonding test between metal bundles and SGHC steel plates as an example: after 7 days of curing, the average bonding force reaches 3,483N (approximately 355kgf), with a maximum displacement of only 1.3mm. When damaged, it is mostly due to the cohesive fracture of the glue itself (marked as Type A failure) —— this means the glue strength is harder than the base material. Even if the curing period is shortened to 3 days, the bonding force still steadily increases, making it suitable for long – term stress scenarios such as underfloor heating.
- Manual extrusion: First, remove the cap, use a cross cutter to cut deeper at the nozzle, then put the cap back on, and cut off 6mm from the top of the conical cap. It is suitable for local fine – tuning operations in small projects.
- Special container scraping: The specially designed 3D – printed container has a built – in glue scraping function. One container can be filled with one tube of glue, allowing workers to quickly apply glue in batches at the bottom of the frame, reducing waste and improving efficiency.
2.Odorless and Environmentally Friendly, Suitable for Hospitals and Office Buildings
As a VOC – protective product, KU928C – X does not contain 13 harmful substances listed by the Japanese Ministry of Health, Labour and Welfare, nor does it add volatile organic compounds. Tested by JIS A1901:2003, its average daily VOC emission is only 57μg/m³, and the emission rate is 68μg/m²·h, much lower than similar products. It has almost no odor, and customers expressed satisfaction after on – site inspections.
The product has passed JIS A5550 F, JIS A5536 F★★★★ certifications, and also obtained the JAIA – 4 certification from the Japan Adhesive Industry Association (registration number JAIA – 501260), making it particularly suitable for enclosed spaces with high air quality requirements such as hospitals and office buildings.
3.Large Cartridge with Extended Time Limit, Equipped with Special Wipes
Konishi glue uses a 760ml large – capacity cartridge. Before construction, just remove the nozzle and tear off the aluminum film to start using it. Each cartridge can cover approximately 24m² (2 tsubo). The allowable construction time reaches 20 minutes in summer and is extended to 60 minutes in winter, so workers have a high error tolerance and will not be in a hurry. In addition, the matching special wipes can quickly wipe off the overflowing glue, reducing material waste.
★ It should be noted that the glue contains diphenylmethane diisocyanate (MDI ≥ 1%). Although it has passed fire tests and is a non – hazardous product, ventilation and protective equipment are still required during construction to avoid direct contact with the glue.
4.Resistant to Water and High Temperature, Elastic Design for Sound Absorption
In the water resistance test, after steel support columns and concrete blocks are bonded, soaked in 23℃ water for 7 days, the bonding force still reaches 4,022N (approximately 410kgf); when exposed to 80℃ high temperature for 7 days, the bonding strength remains 6.75N/mm (approximately 68.9kgf/cm). In addition, the glue is applied in beads at intervals of 5 – 30cm, forming an elastic coating. This can not only absorb floor vibrations —— the noise of wooden floors after paving is significantly reduced, but also suppress the deformation and cracking of wood due to dry – wet changes, making it suitable for projects such as single – family residences and urban renewal.
5.The 3,650 – Square – Meter Project Proves Zero Cracking and Low Noise
In the Tower C project of Changzhou Gaoxin Plaza, after the construction of Huiya WJ500 series GRC floors with Konishi glue, customers reported no obvious noise when walking. And due to the elastic design of the glue, the cracking problem that often occurs in traditional construction did not appear. The 3,650 – square – meter paving scale proves the feasibility of this solution in large – scale projects.
6.Century – Old Adhesive Enterprise, Gradually Expanding to the Yangtze River Delta
Konishi, with a 150 – year history, relies on the environmental certifications and actual measurement data of KU928C – X to provide a “strong bonding, low pollution” solution for GRC floor construction; Huiya relies on its local channel advantages to implement projects. The two parties revealed that they will subsequently focus on the Yangtze River Delta region, promote the application of this technology in more green building projects, and contribute to the sustainable development of the industry.
