アオイ化学工業 List of Products and Services

Our company offers plastic "high-adhesion molded products" that adhere to various materials and follow the movements of the substrate. These products excel in acid and alkali resistance, moldability, and have already been adopted for preventing water leaks, gas leaks, water stopping, and filling gaps. New applications can be developed based on ideas and needs, and we provide proposals and support tailored to your company's requirements. 【Features】 ■ Stable performance across a wide temperature range of -30°C to 70°C ■ Available in various shapes such as rod, tape, sheet, block, and with core materials ■ Flexible, allowing for fine adjustments on-site ■ Adhesion is possible through chemical reactions with metal oxides in fresh concrete, along with curing *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• others

☆ Powerful even underwater It exhibits strong adhesive strength even underwater. By attaching it in a ring shape to PVC pipes, a strong adhesive force can be achieved. ☆ Usable in wet conditions It has excellent adhesion and can be applied in wet conditions. ☆ Speeds up construction The fast-setting type allows for quicker construction and early backfilling. ☆ Good water tightness Due to minimal shrinkage during curing, it has excellent water tightness. ☆ Excellent durability and chemical resistance After curing, it is rich in durability and chemical resistance.

• Water and sewerage pipe fittings
• Piping materials (concrete pipes)

"Safe Tight / Bonnell Tight" is a resin foam joint board that demonstrates good compliance to the expansion deformation of concrete and its recovery. Due to the deformation volume relaxation function of the internal bubbles characteristic of resin foam, there is almost no overflow during compression. Being made of independent bubbles, it has no water absorption or permeability, and there is also no damage from freezing and thawing. 【Features】 ■ Good chemical resistance ■ Almost no water absorption ■ Lightweight and easy to cut ■ No overflow ■ High recovery ability *For more details, please refer to the PDF document or feel free to contact us.

• Joint material

The "Trigger Joint" is a joint material that artificially concentrates cracks at specific locations while possessing excellent water-stopping performance to prevent water leakage and rebar corrosion, as well as outstanding construction performance from the installation of formwork to completion. There is no need for seal filling treatment on the decorative joints after formwork removal. The color of the joint surface is a gray tone that matches the concrete's hue, and after construction, it blends seamlessly with the structure, resulting in a beautiful finish. 【Features】 ■ Easy to install ■ No need for seal filling treatment ■ Excellent joint followability and water resistance ■ Superior weather resistance ■ Concentration of cracks by adjusting the cross-sectional defect rate ■ Beautiful finish *For more details, please refer to the PDF document or feel free to contact us.

• Joint material

The "Crack Bond Method" is a technique for injecting an epoxy-based injection material (Crack Bond) into cracks that have occurred in concrete structures at low speed and low pressure. Using the CRB injector for injection does not require any special tools, making it easy to inject. By checking the resin remaining in the injection tool, you can visually confirm the curing state of the resin injected into the crack. 【Features】 ■ Improves the durability of structures ■ Can inject deeply at low speed and low pressure ■ Injection work is simple ■ Curing state can be easily checked *For more details, please refer to the PDF document or feel free to contact us.

• Reinforcement and repair materials
• Renovation and repair methods

"Unicold L-2" is a two-component mixed rubber asphalt emulsion type filling material designed for quick and easy application. The main agent container is a tube, and by simply adding the hardener (liquid) and shaking it, it becomes a fast-curing injection filling material. It is suitable for injection into cracks that occur in concrete and asphalt pavements, and due to its low viscosity compared to our conventional product (Unicold), it excels in penetration into permeable pavements. 【Features】 ■ Suppresses the pumping phenomenon of permeable asphalt pavements ■ Effective in extending the lifespan of asphalt pavement ■ The cured material is elastic and follows the movement of joints and cracks ■ As an emulsion type, it has good adhesion to wet surfaces ■ Due to its low viscosity, it has good permeability to permeable pavements, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Reinforcement and repair materials
• Renovation and repair methods

"Unicold Room Temperature Type" is a simple and quick construction filling material of the two-component mixed rubber asphalt emulsion type. The main agent container is in a tube, and by simply adding the hardener (liquid) and shaking it, it becomes a fast-curing injection filling material. Since it is a room temperature construction type, it can be safely applied without using fire. Compared to heated construction types, it does not produce smoke or CO2, making it an environmentally friendly product. [Features] - Can be applied without a dedicated primer, eliminating the need for coating and drying steps. - Allows for easy application according to joint widths and crack widths. - Fast-curing type that hardens in about one hour. - Safe to apply without using fire, as it is a room temperature construction type. - Environmentally friendly product that does not produce smoke or CO2. *For more details, please refer to the PDF document or feel free to contact us.

• Reinforcement and repair materials
• Renovation and repair methods

The "Rubber Coat Method" is a waterproofing technique that uses a two-component acrylic polymer cement-based coating material (Rubber Coat RC-4) to prevent water leakage. By mixing the main agent (liquid) and the hardener (powder), it becomes an elastic mortar. By applying it to the joint area of the central divider of elevated bridges, it effectively prevents water leakage from the joints. It has excellent elasticity and flexibility, allowing it to closely follow the vibrations of the deck. 【Features】 ■ Maintains elasticity for a long period and durability has been confirmed through performance ■ The mixture of the main agent and hardener is fluid and has excellent workability ■ Can reliably prevent water leakage ■ Harmonizes with the landscape when an AOI topcoat is applied ■ Has excellent elasticity and flexibility, closely following the vibrations of the deck *For more details, please refer to the PDF document or feel free to contact us.

• Road construction
• Bridge Construction

The "AOI Show Onboard" is a floor soundproofing material that has been developed through various considerations regarding the prevention of airborne and solid sound propagation, along with repeated measures and evaluations leading to its commercialization. It contains a heavy mineral filler that excels in preventing vibration propagation, uniformly bonded with rubberized asphalt that absorbs these vibrations and possesses elasticity. As a result, it is a board that can significantly reduce not only floor impact noise in homes and apartments but also noise from above. 【Features】 ■ High sound insulation effect achieved with a single layer installation ■ Greatly reduces floor impact noise ■ Although high density, it can be easily processed with a utility knife ■ Both sides are finished with non-woven fabric, allowing for good compatibility with base materials and flooring ■ Environmentally friendly *For more details, please refer to the PDF document or feel free to contact us.

• Soundproofing panels
• Soundproofing Sheet
• Special flooring/indoor

"I-Pass" is a product that combines a triangular rubber component with a molding tape that enhances adhesion to pavement. We have selected hard rubber for the rubber material of this product, achieving both durability and flatness. To improve adhesion to both concrete and asphalt pavements, we have adopted a unique shape. Installation is simple; just attach the I-Pass to the upper edge of the concrete and lay the asphalt mixture. 【Features】 - No more issues with edge chipping or gaps during handover inspections. - Faster handover to customers. - No costs incurred for repairs due to rework. - Maintaining flatness at the boundary reduces unnecessary deceleration. - Provides improved work efficiency to customers and gains trust in quality. *For more details, please refer to the PDF document or feel free to contact us.

• Paving Materials

The "Weed Sheet M" is a thin, lightweight weed suppression material that offers excellent workability and allows for easy on-site cutting and processing. It is an environmentally friendly sheet made from recycled PET fibers, consisting of two layers of short and long fiber non-woven fabric. It has flexibility that easily conforms to the unevenness of the ground. While it does not allow plant shoots to pass through, it possesses water permeability and air permeability, ensuring that it does not hinder the growth of surrounding plants. 【Features】 ■ Excellent light-blocking and chemical resistance ■ Flexibility that easily conforms to the unevenness of the ground ■ Prevents fading and maintains aesthetic appeal for a long time ■ Water and air permeable, compatible with seedlings and other plants ■ Easy to install *For more details, please refer to the PDF document or feel free to contact us.

• Paving Materials
• others

The "Weed Sheet AS" has high water resistance and light-blocking properties, making it a weed control material that completely prevents the growth and reproduction of plants through photosynthesis. Additionally, it possesses long-lasting weather resistance due to protective silica sand. According to the results of the weather meter accelerated weathering test, after 3000 hours, no significant changes in appearance, dimensions, weight, tensile properties, or light-blocking performance were observed. It can be used on highway shoulder slopes, cut slopes, and central reservations. 【Features】 ■ 100% light-blocking to prevent plant photosynthesis ■ No permeability, does not support plant growth ■ Excellent weather resistance ■ Easy to install - Joint and edge treatment can be done simply by welding with a torch burner *For more details, please refer to the PDF document or feel free to contact us.

• Paving Materials
• others

The "Rubber Top Joint 250MJ" is an embedded joint for bridges that significantly improves driving performance and water-tightness. Thanks to a new concept in expansion structure, it ensures an expansion amount of 20mm with a minimum joint width. By reducing the contact surface with the tires, it shortens the time that the vehicle's wheel load is applied. The structure is simple, with less material volume, and it cools down quickly, resulting in a reduced total construction time. 【Features】 ■ Measures against rutting ■ Double leakage prevention ■ Comfortable driving performance ■ No noise generation ■ Reduced construction width compared to conventional methods *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods
• Reinforcement and repair materials

The "Water Cutter (for side use)" is a drainage material that prevents water from flowing in various areas, which was difficult with conventional drainage materials, and helps suppress the deterioration of structures. It uses a flexible and highly durable material that conforms to the unevenness of the application surface. A dedicated mounting base is included, allowing for easy attachment with a one-component adhesive. This product is applicable to the side parts of girders, handrails, abutments, and piers, as well as the inclined parts of piers and areas using the wrapping method. 【Features】 ■ Suppresses the deterioration of structures ■ Lightweight at 50g per piece ■ Dedicated adhesive with excellent adhesion ■ Flexible and highly durable material ■ Easy installation *For more details, please refer to the PDF document or feel free to contact us.

• glue
• Subsidiary materials

The "Water Cutter" is a drainage material for concrete structures that can prevent the deterioration of bridges caused by water that seeps around the underside of the deck. Weighing only 80g per unit, it is easy to install. It comes with an assembly-type mounting base, making it easier to apply adhesive. After applying the adhesive, this product can be pressed into place by lifting the base, achieving even simpler installation. 【Features】 ■ Prevents deterioration of bridges caused by water seeping around the underside of the deck ■ Only 80g per unit ■ Unique shape cuts off seeping water ■ Comes with an assembly-type mounting base for easy adhesive application ■ Easy installation with one-component adhesive *For more details, please refer to the PDF document or feel free to contact us.

• glue
• Subsidiary materials

Asphalt is a black, sticky substance obtained as a residue from the distillation of petroleum, which has the property of melting and becoming soft when heated. It is highly durable and water-resistant, making it suitable for use in road paving, and it has high viscoelasticity, allowing it to be used as a binder (adhesive material). It is also easy to process and an economical material. Our company possesses one of the leading asphalt board manufacturing lines in the country. This product is used for civil engineering applications such as joint materials and water-stopping materials, as well as for building floor soundproofing materials. Its properties that make it difficult for sound to transmit, as well as its use in agricultural applications and as a simple paving material that conforms to the underlying surface, allow for various applications! Additionally, we have a manufacturing line for rubber asphalt sheets. We are seeking new applications for these products. 【Features of Asphalt Products】 ■ It is a black, sticky substance obtained as a residue from petroleum distillation, with high viscoelasticity and excellent binder properties. ■ We can manufacture asphalt boards with thicknesses ranging from 4mm to 20mm, and rubber asphalt sheets with thicknesses from 2mm to 5mm. ■ It is highly durable and water-resistant. ■ Soundproofing effects and water-stopping properties can also be imparted. ■ It is easy to process and economical. *For more details, please refer to the PDF materials or feel free to contact us.

• Modified asphalt sheet
• Paving Materials
• others

Aoi Chemical has a long track record of manufacturing materials with strong adhesion. Strong adhesive molded products can adhere to various materials and are capable of following the movement of the substrate. We can manufacture products with performance and shapes tailored to our customers' applications. No changes are observed even in areas that come into contact with strongly acidic or strongly alkaline solutions. For about 50 years, we have been manufacturing and supplying materials that utilize adhesive properties for water-stopping effects in the sanitary ware field. 【Features】 ■ Strong adhesion ■ No influence from seasons or environments ■ Acid and alkali resistance ■ Free molding capabilities ■ Stable manufacturing *For more details, please refer to the PDF materials or feel free to contact us.

• Waterproofing Agent
• Joint material

The "Water Cutter" is a lightweight, flexible water drainage material that can be easily retrofitted, preventing deterioration of concrete structures caused by water seeping around the underside of the floor slab. When the included pole paper is assembled, it quickly transforms into a base for applying adhesive to this product. It allows for easy installation with one-component adhesive. After applying the adhesive, the Water Cutter can be easily installed by lifting the base and pressing it down, achieving even simpler installation. 【Features】 ■ Lightweight ■ Cuts off seeping water with its unique shape ■ Comes with an assembly-type mounting base for easy adhesive application ■ The product with applied adhesive can be easily installed using the base *For more details, please download the PDF or feel free to contact us.

• Subsidiary materials

"Unicold L-2" is an emulsion-type repair agent that fills cracks and gaps caused by asphalt coating, allowing for the repair of cracks and preventing the scattering of aggregates. It has low viscosity and can be applied at room temperature, requiring no flame, so it does not produce smoke. It is easy to apply by injecting and dispensing from a nozzle-equipped container and simply spreading it with a rubber spatula. 【Features】 ■ Ideal for drainage pavements (prevents pumping phenomena) ■ Highly effective for extending the life of pavements ■ Emulsion type with good adhesion even when wet ■ Improved slip resistance ■ Elastic and excellent crack-following ability *For more details, please download the catalog. It also includes images of the application process.

• Earthworks

This is a two-component, room temperature type asphalt emulsion sealing material. [Features] ○ Good adhesion to wet surfaces. ○ Consideration for the environment. ● For other functions and details, please download the catalog.

• Foundation construction

Easy to process. Excellent aesthetics and water resistance. Good joint adaptability. 【Features】 ○ Easy to install. ○ No seal filling treatment required. ○ Excellent joint adaptability and water resistance. ○ Outstanding aesthetics. ○ Concentrated cracking by adjusting the cross-sectional defect rate. ● For other functions and details, please download the catalog.

• Joint material

Improvement of adhesion to concrete. Prevention of joint board drop. 【Features】 ○ High resilience. ○ Resistance to shear forces. ○ Excellent chemical resistance. ○ No overflow. ○ Good workability. ○ Improved water resistance. ● For other functions and details, please download the catalog.

• Joint material

Strong adhesive molded products can adhere to various materials and are capable of following the movement of the adhered object. We can manufacture products with performance and shapes tailored to our customers' applications. In the field of hygiene equipment, we boast a long track record of 48 years of use.

• Renovation and repair methods

Konmat is a concrete curing mat with a long-standing track record. 【Features】 ○ It retains the moisture necessary for the hydration of cement for an extended period to achieve the desired strength. ○ A portion of the wetted curing mat changes to blue, making it easy to identify the areas that have been watered. (Konmat No. 1-A) ○ It can maintain the internal temperature of the concrete at an optimal level. ○ It is resistant to chemicals, particularly against the alkalinity of cement. ○ It does not contaminate or damage the concrete surface. ○ It is easy to install and cost-effective in terms of materials. ○ It is durable for repeated use. ○ It has aging resistance against direct sunlight. ○ It is convenient for transportation and storage. ● For other functions and details, please download the catalog.

• Earthworks

You can inject epoxy resin-based sealants into the details of cracks with simple tasks. 【Features】 ○ Can inject deeply at low speed and low pressure. ○ Injection work has become easier. ○ Injection volume and pressure can be managed. ○ Sealant can be continuously supplied. ○ Sealant can be selected according to the crack. ○ Hardening state can be easily checked. ● For other functions and details, please download the catalog.

• Earthworks

【Features】 ○ High sound insulation effect can be achieved with a single layer installation. ○ Significantly reduces floor impact noise. ○ Although it is high density, it can be easily processed with a utility knife. ○ Both sides are finished with non-woven fabric, making it compatible with underlayment and flooring. ○ Environmentally friendly. ● For other functions and details, please download the catalog.

• board

Weed Sheet AS is a weed control sheet used in civil engineering and agriculture, composed of SBS-modified asphalt sheet and covered with green silica sand on the surface. 【Features】 ○ It prevents not only the penetration of sprouting roots from the ground but also the rooting of airborne seeds, demonstrating higher weed control performance. ○ The surface color is green, blending naturally into the landscape. ● For other functions and details, please download the catalog.

• Modified asphalt sheet