三ツ星ベルト List of Products and Services

We would like to introduce a case where the "Fastback Waterproofing Method" was adopted on the roof of a certain warehouse in Hatsukaichi City, Hiroshima Prefecture. Due to the substrate being deck concrete, there were concerns about the waterproof layer swelling after construction. However, since the Fastback Waterproofing Method uses a vented layer with vulcanized rubber sheets, there was absolutely no swelling after construction, and it is possible to expel moisture from the substrate through the ventilation device. Additionally, since the construction method involves a one-sided adhesion technique and the drying time of the adhesive can be significantly shortened, the installation was completed quickly. [Case Overview] ■ Method: Fastback Waterproofing Method ■ Substrate: Deck Concrete *For more details, please refer to the related links or feel free to contact us.

• Waterproofing work
• Waterproof sheet
• Rubber sheet

We would like to introduce a case where the "RV-101 waterproofing method" was adopted for the Silver Cool roof at a warehouse in Mie Prefecture. The Silver Cool substrate is greatly influenced by the behavior of the building. The substrate-following properties and flexibility of EPDM rubber sheets make them suitable waterproofing materials for this substrate. Please feel free to contact us if you need our services. 【Case Overview】 ■Method: Adhesive method ■Substrate: Silver Cool (precast concrete) substrate *For more details, please refer to the related links or feel free to contact us.

• Waterproofing work
• Rubber sheet
• Waterproof sheet

We would like to introduce a case where the "New Blend NB-401HF Method" was adopted at a certain community center in Hiroshima Prefecture. The insulation material used is high-performance rigid urethane foam, which has enhanced the insulation performance. Please feel free to contact us when you need our services. 【Case Overview】 ■ Method: Mechanical Fixing Method ■ Substrate: Asphalt-pressed cinder concrete *For more details, please refer to the related links or feel free to contact us.

• Waterproofing work
• Rubber sheet
• Waterproof sheet

We would like to introduce a case where the "RV-101 waterproofing method" was adopted on the rooftop of Takeuchi Co., Ltd. in Himeji City, Hyogo Prefecture. This method is a standard technique that involves adhering EPDM-based rubber sheet waterproofing material, known for its weather resistance, to the substrate. Thanks to the elasticity unique to rubber sheets, it is strong against substrate movement, and due to full adhesion, it also exhibits excellent wind pressure resistance. This method boasts a long history and numerous construction achievements, making it applicable to a wide range of substrates, from RC to dome roofs and ALC board substrates. [Case Overview] ■ Method: Adhesive method ■ Substrate: RC *For more details, please refer to the related links or feel free to contact us.

• Waterproofing work
• Rubber sheet
• Waterproof sheet

We would like to introduce a case where the "Neo-Court AG Waterproofing Method" was adopted at a certain entertainment facility in Oita Prefecture. In waterproofing renovations of metal roofs used in factories, warehouses, and gymnasiums, our standard method employs EPDM rubber sheets. However, in the case of long, narrow standing seam roofs with a narrow valley width, conventional methods can be difficult to implement. Therefore, acrylic rubber-based coating waterproofing materials that can form a waterproof membrane through application are effective. This one-component type does not require mixing, and it can be easily applied to complex areas with a roller or brush, while also providing excellent durability. 【Case Overview】 ■ Method: Neo-Court AG Waterproofing Method ■ Substrate: Bolt-type standing seam roof *For more details, please refer to the related links or feel free to contact us.

• Waterproofing work
• Rubber sheet
• Coating film waterproofing material/permeable waterproofing material

We would like to introduce a case where the "New Blen NB-101HF Method," a glass fiber reinforced EPDM rubber sheet waterproofing, was applied while leaving the existing waterproof layer intact on the rooftop of a multi-unit residential building. By using a high-frequency induction heating device, the fixed disk and the waterproof layer are securely fused. Additionally, since the fixed disk is pre-installed, rapid construction is possible without drilling holes in the main waterproof layer. This method combines the weather resistance and durability of EPDM rubber sheets with construction speed. [Case Overview] ■ Method: Mechanical fixing method ■ Base: EPDM rubber sheet adhesion method *For more details, please refer to the related links or feel free to contact us.

• Waterproofing work
• Waterproof sheet
• Rubber sheet

We would like to introduce a case where the "Stage Roof Waterproofing Method" was adopted for the clubhouse of Kasugai Country Club in Kasugai City, Aichi Prefecture. Without compromising the image of the clubhouse, which exudes history and elegance, we achieved a beautiful finish. Additionally, the excellent waterproof performance contributes to the longevity of the building itself. Since large construction equipment is not required for the installation, there is no noise during construction, minimizing the impact on the facility during its operation. [Case Overview] ■ Method: Stage Roof Waterproofing Method ■ Substrate: Horizontal Roof *For more details, please refer to the related links or feel free to contact us.

• Waterproofing work

We would like to introduce a case where the "Liblue Waterproofing Method" has been adopted for the indoor gymnasium of Hiroshima City Itukaitsu Elementary School. Without compromising the design feature of the convex lines characteristic of the tiled roof, and by using a metallic finish material, we achieved a beautiful finish that is very close to the original metallic roof. In addition to its high waterproofing performance, it also excels in sound insulation against rain noise, making it particularly beneficial for school-related buildings where events such as discussions are held. 【Case Overview】 ■ Method: Liblue Waterproofing Method ■ Base: Tiled Roof *For more details, please refer to the related links or feel free to contact us.

• Waterproofing work

We would like to introduce a case where the "Bolt Cap Waterproofing Method" was adopted for the gymnasium roof of an elementary school in Saitama Prefecture. The bolt section uses EPDM-based vulcanized rubber, which has excellent weather resistance, making it far more durable than typical resin-based caps. By using the high weather-resistant and high solar reflectance paint "Neo Color Clean" as the finishing coat, we enhanced the durability of the waterproofing material while simultaneously lowering the surface temperature of the roof, which helped to reduce the temperature rise indoors. 【Case Overview】 ■ Method: Bolt Cap Waterproofing Method ■ Substrate: Bolt-type folded plate roof *For more details, please refer to the related links or feel free to contact us.

• Waterproofing work
• Coating film waterproofing material/permeable waterproofing material

"Newblen" is a vulcanized rubber-based sheet waterproofing material for mechanical fastening methods. This product, which enables mechanical fastening methods, is reinforced with fiberglass and is based on the well-established "Neo-Roofing E (homogeneous sheet)" known for its long-standing performance and weather resistance. The quality of this product complies with the vulcanized rubber-based general composite sheet standards of JIS A 6008, revised in 1992, and its specifications have been adopted in the Ministry of Land, Infrastructure, Transport and Tourism's "Common Specifications for Construction Works" (2001 edition) as a mechanical fastening method, steadily building a solid track record alongside standardization of specifications. [Features] ■ Durability has been proven over many years of performance ■ High initial strength, excellent impact resistance and tear resistance ■ Does not use chlorine-based materials or plasticizers ■ Joints are bonded with a specialized adhesive of the natural cross-linking type, providing excellent adhesion and heat and water resistance *For more details, please feel free to contact us.

• Waterproof sheet

The "Fastback Sheet" is a high-durability EPDM-based waterproofing material with a ventilated layer. It is a type of synthetic rubber known as ethylene propylene diene rubber, which has performance that sets it apart from other waterproofing materials in terms of "weather resistance and water resistance." Additionally, the improvement in service life contributes to the reduction of renovation work, which in turn helps to reduce CO2 emissions. 【Features】 ■ Standardized ventilation performance ■ Environmentally friendly ■ Labor-saving, achieving shortened construction periods ■ Multifunctional construction system ■ Long-life design for durability *For more details, please feel free to contact us.

• Waterproof sheet

The "Metal Roof Waterproofing Renovation Method" is an excellent waterproofing technique that covers metal roofs with rubber-based materials for renovation. A special primer with anti-rust properties prevents the progression of rust. The characteristics of vulcanized rubber and other components ensure that the current shape is maintained, resulting in a beautiful finish. Additionally, a metallic paint can provide a finish that matches the metal roof. 【Features】 ■ Excellent durability ■ Prevents the progression of rust ■ Beautiful finish ■ Improved livability (soundproofing and energy efficiency) ■ Lightweight ■ Easy to install (one-sided adhesion, no large equipment required, no need for space) *For more details, please feel free to contact us.

• Waterproofing work

"Neo Roofing" is an environmentally friendly vulcanized rubber sheet material for waterproofing methods. We offer four types of general-purpose "Neo Roofing E" ranging from 1.0mm to 2.0mm, as well as a color rubber laminated waterproof material "Neo Roofing Color." Additionally, we have a waterproof material with anti-bulging features, "Neo Roofing SPE," which consists of a 4.0mm thick grooved resin sheet laminated onto a vulcanized sheet. 【Product Lineup】 ■ Neo Roofing E ■ Neo Roofing Color ■ Neo Roofing SPE ■ Neo Roofing EB ■ Neo Roofing FB *For more details, please feel free to contact us.

• Waterproof sheet

"Neoletan Lead" is an environmentally friendly polyurethane rubber-based waterproof coating material. While polyurethane rubber-based waterproof materials used outdoors are not subject to legal regulations, Neoletan Lead waterproofing has obtained the highest rating of F☆☆☆☆ based on the Japan Polyurethane Building Materials Association's "Formaldehyde Self-Regulation Display Application Guidelines." Please feel free to contact us when you need our services. 【Features】 ■ Does not fall under the specific chemical substance hazard prevention regulations ■ Does not contain any of the 15 substances specified in the Ministry of Health, Labour and Welfare guidelines ■ Does not contain any of the 6 substances listed in the Ministry of Education, Culture, Sports, Science and Technology's "School Environmental Health Standards" ■ Obtained F☆☆☆☆ rating *For more details, please feel free to contact us.

• Coating film waterproofing material/permeable waterproofing material

"Neorethan Hard" is a polyurethane rubber-based waterproof coating material that will support the coming era. With the increasing demand for the longevity of buildings, the need for improved performance in waterproofing materials has been rising year by year. In response to this need, we have newly developed a high-spec waterproof material that combines "high quality, high durability, and high environmental performance." Additionally, it possesses a balanced combination of high-strength and high-elongation properties, eliminating the need for a reinforcing fabric. [Features] ■ Evolution to even higher quality ■ Fabric-free ■ Environmentally friendly *For more details, please feel free to contact us.

• Coating film waterproofing material/permeable waterproofing material

"Neo Coat PX" is a polymer-cement-based waterproofing material that has excellent substrate adherence due to its high elongation performance. It can be easily applied by simply mixing the liquid and powder. The application can be done easily with a brush or trowel, so no special tools are required. Additionally, since it is a water-based material, it can be safely applied indoors without the use of flammable materials or organic solvents. 【Features】 ■ Waterproofing ■ Workability ■ Safety *For more details, please feel free to contact us.

• Coating film waterproofing material/permeable waterproofing material

"Neo-Court AG" is a coating waterproofing material primarily made of durable and environmentally friendly acrylic rubber. It forms a seamless waterproof layer and prevents the progression of rust with a special primer. Additionally, no open flames are used during the application. Please feel free to contact us when you need our services. 【Features】 ■ Waterproofing: Seamless and highly durable ■ Applicability: One-component type ■ Safety: Water-based material *For more details, please feel free to contact us.

• Coating film waterproofing material/permeable waterproofing material

"Mizushito" is a vulcanized rubber waterproof sheet made from highly durable synthetic rubber (EPDM). Since its launch in 1969, it has a wealth of proven performance in various applications. Additionally, we offer a rich lineup including "Mizushito S," reinforced with heat-resistant and water-resistant polyester fibers, "Mizushito FPA," which does not use plasticizers or oils, and "Mizushito PJ," which can be thermally fused. 【Physical Properties】 ■ Tensile Strength (N/cm): 120 or more ■ Elongation Rate (%): 280 or more ■ Tear Strength (N): 40 or more *For more details, please download the PDF or feel free to contact us.

• Drainage material

The "Mighty Sheet R" is a flexible waterproof sheet made of polyvinyl chloride (PVC) that possesses excellent strength and flexible elongation for civil engineering applications. The tensile performance includes a tensile strength of over 120N/cm and an elongation rate of over 280%. The tear strength is over 40N. Additionally, we also offer a light-blocking protective mat "Mighty Mat M" and a high-pressure surface drainage material "Mighty Mat GR." 【Dimensions】 ■ Thickness 2.0mm / Width 2.04m / Length 20m ■ Thickness 1.5mm / Width 2.04m / Length 20m ■ Thickness 1.0mm / Width 2.04m / Length 20m ■ Thickness 0.5mm / Width 2.04m / Length 20m *For more details, please download the PDF or feel free to contact us.

• Drainage material

We offer a "Root Barrier Sheet" that suppresses the growth direction of rhizomes to prevent intrusion and protect waterproof sheets. Made of polypropylene, it contains no chemical substances, has no volatile components or odors, and is an environmentally friendly product. It is suitable for applications such as protecting waterproof sheets in agricultural reservoirs, golf course landscape ponds, and waste landfill ponds. 【Basic Physical Properties】 ■ Tensile Modulus (Kgf/cm²): Standard value / 100 or more, Measured value / Longitudinal 128, Width 123 ■ Yield Strength (Kgf/cm²): Standard value / 240 or more, Measured value / Longitudinal 287, Width 256 ■ Elongation (%): Standard value / 700 or more, Measured value / Longitudinal 775, Width 820 ■ Impact Strength (Kgf/cm): Standard value / 10 or more, Measured value / 15.5 *For more details, please download the PDF or feel free to contact us.

• Drainage material

The "EJ Tape" is a tape that has a self-adhesive layer laminated onto a vulcanized rubber tape. By treating the surface of the substrate with a dedicated primer and simply applying and pressing it down, it can be bonded. After installation, the temperature rise of the tape surface promotes the curing of the adhesive layer, demonstrating strong adhesion. There is no concern about uneven application like with adhesive methods, and since the specified adhesive thickness can be secured, stable adhesion and water tightness can be ensured. 【Features】 ■ Easy to install ■ Stable finish ■ Strong adhesion *For more details, please download the PDF or feel free to contact us.

• Reinforcement and repair materials
• glue

The "Liblue Waterproofing Method" is a technique with particularly many achievements among metal roof renovation methods. Since a layer of adhesive is laminated onto a rubber sheet, one-sided adhesion is possible, and it does not require large-scale equipment, allowing for construction in minimal space. Additionally, it is highly durable and maintains excellent waterproofing functionality for a long period without being affected by acid rain or salt damage. 【Features】 ■ Excellent durability ■ Beautiful finish ■ Improved livability ■ Easy to install ■ Prevents rust progression ■ Lightweight *For more details, please download the PDF or feel free to contact us.

• Waterproofing work

The "Stage Roof Method" is a waterproofing technique that utilizes the flexibility of rubber sheets, allowing the roof's shape to remain intact for a beautiful finish. It maintains excellent waterproofing functionality for a long period without being affected by acid rain or salt damage. The load-bearing capacity is approximately 2.5 kg/m², which poses almost no structural issues. Additionally, the soundproofing and vibration-damping effects of the rubber sheets reduce the resonance of rain sounds. The high-reflectivity paint finish helps to keep attic temperatures down, reducing air conditioning costs, and is beneficial in gymnasiums without air conditioning by lowering indoor temperatures. 【Features】 ■ Excellent durability ■ Beautiful finish ■ Improved livability ■ Easy installation ■ Lightweight ■ Prevents rust progression *For more details, please download the PDF or feel free to contact us.

• Waterproofing work

The "Bolt Cap Waterproofing Method" involves covering existing bolt areas with a special synthetic rubber cap (Cap Man), demonstrating excellent durability. Since the rubber sheet has a laminated adhesive layer, one-sided adhesion is possible. There is no need for large-scale equipment or significant construction space, allowing for installation in minimal space. Additionally, the characteristics of vulcanized rubber and other materials ensure that the current shape is maintained, resulting in a beautiful finish. Furthermore, a metallic paint can provide a finish that matches metal roofs. 【Features】 ■ Excellent durability ■ Prevents rust progression ■ Beautiful finish ■ Improved livability (soundproofing and energy saving) ■ Lightweight ■ Easy to install *For more details, please download the PDF or feel free to contact us.

• Waterproofing work

We would like to introduce the high-density polyethylene sheet "Dispoliner," which is handled by Mitsuboshi Belt Co., Ltd. This product is a waterproof sheet for waste landfill sites, made from a material that is high-strength, weather-resistant, and excellent in chemical resistance. Our waterproof sheet construction technology and system, backed by extensive experience, demonstrate functions suitable for protecting the natural environment. 【Features】 ■ High strength ■ Excellent weather resistance and chemical resistance ■ Functions suitable for protecting the natural environment *For more details, please download the PDF or feel free to contact us.

• Waterproof sheet

We would like to introduce the "Mighty Mat" handled by Mitsuboshi Belt Co., Ltd. This product is a specially processed drainage and protection material made from natural fibers, synthetic fibers, and synthetic resins, either individually or in combination. Please choose from a wide range of products according to your needs, including anti-washout agents, surface drainage agents, and protective mats. 【Features】 ■ Special processing of natural fibers, synthetic fibers, and synthetic resins, either individually or in combination ■ Extensive lineup *For more details, please download the PDF or feel free to contact us.

• Drainage material

"Mighty Barrius" is a polymer-based self-repairing material that features a structure in which superabsorbent resin is encapsulated in polyester long fiber non-woven fabric, commonly used in waste landfill sites. When penetrative objects breach the impermeable layer, the superabsorbent resin absorbs moisture from leachate and other sources, swelling to seal the penetration point and demonstrate its self-repairing function. It is a material suitable for a new impermeable construction system that enhances safety. Please feel free to contact us if you have any inquiries. [Features] ■ Absorbs approximately 400 times its own weight in water upon contact ■ Seals penetration points by swelling, demonstrating self-repairing functionality *For more details, please download the PDF or feel free to contact us.

• others

The "Heat Disk Method" is a groundbreaking technique that enables the fixation of waterproof sheets to concrete retaining walls. It demonstrates exceptional effectiveness in the installation of waterproof sheets for closed-type waste landfill sites and reservoirs constructed with concrete retaining walls, contributing to the protection of the natural environment. Additionally, the pitch of the disks can be adjusted according to site conditions, and installation can be carried out after the inspection of the concrete substrate is completed. 【Features】 ■ Enables the fixation of waterproof sheets to concrete retaining walls ■ Reduces construction time for concrete retaining walls ■ Allows for adjustment of the disk pitch according to site conditions ■ Installation can be performed after the inspection of the concrete substrate is completed *For more details, please download the PDF or feel free to contact us.

• Concrete construction

We would like to introduce the "Spark Inspection" conducted by Mitsuboshi Belt Co., Ltd. A pinhole refers to a tiny defect present in waterproofing materials, and the existence of pinholes significantly affects the performance of waterproofing. However, it is impossible to visually confirm all such minute defects. The principle of spark inspection utilizes the phenomenon of electric current flowing through the defective areas of waterproofing materials. 【Features】 ■ In the case of a conductive layer - By laying a conductive mat under the waterproof sheet, spark inspection by the inspection machine becomes possible. ■ In the case of no conductive layer - If the substrate is reinforced concrete, spark inspection using a dedicated inspection machine is possible. *For more details, please download the PDF or feel free to contact us.

• Structural Survey

We would like to introduce the "Joint Sheet Waterproofing Method" conducted by Mitsuboshi Belt Co., Ltd. This method stops water leakage from concrete joints using two techniques tailored to specific applications. The Mizushito method is used in conjunction with traditional structures such as overflow outlets and water intake facilities of reservoirs, and it has a proven track record. The Neo-Roofing FB method involves applying adhesive only to the substrate, and the sheet is simply adhered after removing the release paper. Solvent-free construction is also possible. 【Features】 ■ Available in two types: with adhesive layer and without adhesive layer, depending on the application ■ Proven track record *For more details, please download the PDF or feel free to contact us.

• Waterproofing work

We would like to introduce the "Liner Anchor Type E" handled by Mitsuboshi Belt Co., Ltd. This product is a polyethylene-based fixture for securing polyethylene structures, which allows for the joining of polyethylene sheets when installed during concrete pouring. When fixing a waterproof sheet to a concrete structure, flat bars and anchor bolts are typically used. However, in the case of new structures, using this product enables a more reliable connection with the waterproof sheet. 【Features】 ■ Made of polyethylene ■ Allows for joining with polyethylene sheets when installed during concrete pouring *For more details, please download the PDF or feel free to contact us.

• Unit and other construction

We would like to introduce the "Bynes Cube" handled by Mitsuboshi Belt Co., Ltd. This product is a sheet-like contact material made of PVC, which excels in corrosion resistance, chemical resistance, and water resistance. It features a surface structure that allows microorganisms to easily adhere, making it suitable for various designs. Additionally, our company offers a variety of contact materials, including sheet, ball, and fluid carrier types, so please feel free to contact us if you have any requests. 【Features】 ■ Excellent corrosion resistance, chemical resistance, and water resistance ■ Surface structure that allows microorganisms to easily adhere ■ Capable of accommodating various designs *For more details, please refer to the related links or feel free to contact us.

• Water Treatment

We would like to introduce the "Bainess Ball" handled by Mitsuboshi Belt Co., Ltd. This product is a ball-shaped water treatment contact material made of PP that is lightweight, strong, and resistant to deformation and damage. Due to its large dimensions, it can secure a high specific surface area with fewer pieces. Additionally, the design minimizes entanglement between contact materials, making it easier to ensure airflow pathways. 【Features】 ■ Lightweight and strong, made of PP, resistant to deformation and damage ■ Large dimensions allow for a high specific surface area with fewer pieces ■ Design minimizes entanglement between contact materials, facilitating airflow pathways *For more details, please refer to the related links or feel free to contact us.

• Water Treatment

We would like to introduce the 'Bainess Carrier GP/HC' handled by Mitsuboshi Belt Co., Ltd. "Bainess Carrier GP" is a special polyurethane foam carrier with a large surface area and continuous bubbles. It has high fluidity and demonstrates its performance shortly after introduction. "Bainess Carrier HC" can retain microorganisms at a high concentration due to its unique bubble structure. It excels in hydrophilicity and abrasion resistance compared to Bainess Carrier GP, contributing to the reduction of total operation costs in water treatment facilities. [Features] ■ Bainess Carrier GP - High fluidity, demonstrating performance shortly after introduction ■ Bainess Carrier HC - Can retain microorganisms at a high concentration due to its unique bubble structure - Contributes to the reduction of total operation costs in water treatment facilities *For more details, please refer to the related links or feel free to contact us.

• Water Treatment