日本シーカ List of Products and Services

This is a moisture-curing, one-component polyurethane-based elastic sealing material for civil engineering. It corresponds to durability classification 9030, excels in workability at low temperatures, and particularly its weather resistance overturns the conventional wisdom of traditional polyurethane sealing materials. After 2,000 hours of the Sunshine Weather Meter test, there are no surface cracks. Additionally, while general polyurethane sealing materials have the potential for foaming when moisture is high, this is a non-foaming type, so there are no foaming issues even in water-related applications.

• Dam construction
• Erosion control works
• Plastering and painting work

It is a two-component, solvent-free adhesive with moderate viscosity. It is suitable for bonding CFRP* sheets used for bending reinforcement of structures. *Carbon Fiber Reinforced Plastic

• glue

This is a high-quality AE water-reducing agent newly developed using Seika's new polymer technology. Thanks to the powerful cement dispersion effect of the main component polymer and its stable air-entraining effect, it is possible to reduce the amount of water used compared to conventional AE water-reducing agents. Additionally, its stable slump retention effect reduces the time-dependent changes in slump, allowing for the economical production of concrete with excellent workability, strength, water tightness, and resistance to carbonation.

• Medicines

It is a high-performance AE water-reducing agent mainly composed of polycarboxylic acid compounds. It can accommodate a wide range from general strength to high-strength concrete of about 70 N/mm², and it enables the production of concrete with good workability and low viscosity even in the high-strength range.

• Medicines

This is a super high-strength concrete admixture primarily composed of polycarboxylic acid-based new polymers. By using it, concrete with a design strength of 100 N/mm² or more can be produced. Even in super high-strength concrete, it has low viscosity, enabling the realization of RC structures in high-rise buildings and ultra-high-strength concrete-filled steel tubes.

• Concrete admixture