SAKIGAKE管理人 This is a product developed and provided by our partner, Aster Co.Ltd. (CEO: Masaomi Suzuki). This low-cost, next-generation fiber-reinforced coating can be used on a wide variety of structures, including elevated bridges, condominium exterior walls, and even reinforcing World Heritage sites.
Next-Generation Concrete Reinforcement Solution
Product Overview
Aster Power Coating is a fiber-reinforced coating developed by Aster Inc., a startup originating from the Institute of Industrial Science at the University of Tokyo. Blended with specially engineered fibers boasting ten times the tensile strength of steel, this coating dramatically enhances the seismic and durability performance of buildings. It is designed to reinforce masonry structures vulnerable to earthquakes as well as aging concrete constructions, preventing peeling and spalling that traditional repair methods cannot address.
With its high adhesion and tensile strength, Aster Power Coating provides structural reinforcement simply by being applied to the surface. Backed by proven performance both in Japan and internationally, it is a trusted technology for protecting both buildings and lives—at a significantly lower cost than reconstruction.
Robust Finish for Structural Reinforcement
■ Superior Adhesion: Prevents Peeling
Adhesion strength refers to how firmly the coating sticks to the surface. In preventing falling debris, ensuring that the coating remains adhered is crucial.
Aster Power Coating offers an adhesion strength of 1,100 kg per 100 cm².
For example, when a 10 cm × 10 cm × 100 cm concrete block (approx. 23 kg) is at risk of falling, applying Aster Power Coating around a 10 cm perimeter results in a total holding force of 29,700 kg. That’s 1,291 times stronger than the block’s own weight, effectively preventing it from falling.
■ Exceptional Tensile Strength: Prevents Tearing
Tensile strength measures the coating’s ability to resist breaking or tearing under tension.
The special fibers in Aster Power Coating provide ten times the tensile strength of steel, making the coating extremely resistant to tearing.
In the same scenario of a falling 10 cm × 10 cm × 100 cm concrete block, with a coating thickness of 1 mm, Aster Power Coating can withstand up to 2,500 kg (2.5 tons) of tensile force. Compared to the actual load of 23 kg, the coating resists tearing with over 108 times the required force.
Case Studies & Proven Results
■ Izukyuko Kawazu Station Viaduct Repair
Applied to a viaduct exposed to exhaust gas and sea breeze. More than 20 years later, no signs of peeling or deterioration have been observed, resulting in significant maintenance cost savings.
■ Shuwa Kita-Aoyama Residence Exterior Wall Repair
Used on a Spanish wall facade with noticeable bulging. Helped preserve the building’s aesthetic while maintaining asset value.
■ Durbar Square, Nepal – Structural Reinforcement
Adopted to improve the durability of this UNESCO World Heritage Site, receiving high praise from local experts.
Customer Testimonials
Frequently Asked Questions
A. No. The product is easy to apply and does not require specialized techniques. Local production and application are also feasible.
A. With proper application and drying, it provides long-lasting effectiveness. When applied to aging concrete, it has been proven to prevent spalling, with a demonstrated durability of approximately 20 years.
A. Yes. According to Aster’s internal estimates, installation costs are approximately 1/15th the cost of building reconstruction or full renovation.
About Our Partner: Aster Co.Ltd.
Aster Co.Ltd.
Aster Co.Ltd. is a Japan-based disaster resilience startup with a mission to “protecting our future against natural disasters.” Their signature product, Aster Power Coating, utilizes fiber-reinforced technology to create lightweight yet durable coatings that enhance the seismic and structural integrity of buildings. With a focus on innovation, field adaptability, and global application, Aster aims to build a safer society, one structure at a time.