原田鉄工 List of Products and Services

"ISO St3 Work Method" 1. Remove any slag or other contaminants adhering to the surface. 2. Use solvents to remove oils, greases, and other substances adhering to the surface. 3. Use power tools to remove weakly adhered hazardous substances from the surface. 4. For areas where power tools cannot be used, use hand tools for processing. 5. Remove dust and debris with clean, dry air. "ISO St3 Precautions" Work-related hazards - Since power tools will be used, it is necessary to wear appropriate protective gear and take fire prevention measures due to the generation of sparks. Post-work painting process - The treated surface becomes reactive and rust can form in a short time, so painting must be done promptly. - Areas that cannot be processed with power tools, such as corners and complex structures, need to be treated using hand tools as well. - Compare with photos in the ISO visual book to determine the success or failure of the processing. At Harada Iron Works, we also handle surface preparation for St3, but since there may be insufficient cleanliness and adhesion with St3 surface preparation, we generally recommend surface preparation by blasting. For more details, please refer to the related link URL below.

• Rust Inhibitor
• paint
• Exterior coating materials

SSPC is a standard established by the Steel Structures Painting Council USA, and SP-10 (Near White Metal Blast Cleaning) requires the removal of more than 95% of visible surface contaminants (such as oil, dirt, rust, and oxides). Only dry blasting methods are permitted for this process. SSPC SP-10 is the second highest level of standard for surface preparation. The top standard, SSPC SP-5, requires nearly 100% removal, which poses a cost issue. SSPC SP-10 ensures that rust adhered to the surface is completely removed, while allowing for slight discoloration or shadows of mill scale and oxide films up to 5% of the surface area, thus reducing costs while ensuring sufficient cleanliness. This standard is widely used because it maximizes the performance of the paint and prevents early peeling of the coating, thereby extending the product's lifespan. Such specifications are chosen for harsh environments, such as highly corrosive coastal areas.

• Rust Inhibitor
• paint
• Exterior coating materials

"ISO Sa2.5" refers to one of the standards for surface preparation established by ISO (an international non-governmental organization based in Geneva, Switzerland, aimed at creating internationally common standards). It requires the removal of visible contaminants (such as oil, dirt, rust, and oxides) from the surface, allowing only minor stains in the form of spots or streaks. "The Benefits of Using ISO Sa2.5" ISO Sa2.5 is the second highest cleanliness standard in surface preparation. The top standard, ISO Sa3, requires the removal of almost 100% of surface contaminants, which poses issues of cost and time. ISO Sa2.5 allows for up to 5% of minor contamination, reducing costs while still ensuring sufficient cleanliness, making it a widely used standard. Surfaces prepared to Sa2.5 can maximize the performance of coatings, prevent early delamination of the paint film, and extend the product's lifespan. This specification is often chosen for harsh environments, such as coastal areas with high corrosion.

• Rust Inhibitor
• paint
• Exterior coating materials

Methods for Removing Paint" "Chemical Methods" 1. Use a "stripper" designed for removing paint. There are methods such as applying the stripper to the paint and letting it sit, or soaking the item in a container filled with stripper. "Physical Methods" 2. Use tools such as "sandpaper" or "scrapers." This method involves rubbing or scraping the paint off with tools, and many specialized tools are available for this purpose. 3. Use power tools such as "disc sanders" or "air hammers." This method involves pressing a rotating or piston-driven tool against the paint to remove it. 4. "Blasting Treatment" This method involves removing surface paint by colliding abrasives at high speed. In general, when removing paint, methods such as '1' + '2' or '1' + '3' are used in combination. Since it is difficult to completely strip the paint, a stripper is used to remove a certain amount, and then tools are used to remove the remaining paint. 4. Blasting treatment can quickly and reliably remove paint regardless of the type of paint. When repainting during renovations or maintenance, the durability of the new paint significantly depends on "how much of the old paint film was removed and how well the surface was prepared.

• Rust Inhibitor
• paint
• Exterior coating materials

There are various causes for paint peeling, but the main ones are as follows: 1. Surface Preparation - "Insufficient surface preparation" → Impurities such as oxidation films, rust, and old paint have not been completely removed. - "Residual grease and dirt" - "Improper substrate adjustment" → Appropriate substrate adjustment has not been performed according to the type and condition of the metal. 2. Environmental Conditions - "Salt damage" → In environments with high salt content, such as coastal areas or industrial zones, the paint film suffers from salt damage, leading to accelerated deterioration. - "Ultraviolet rays" → Ultraviolet rays promote the degradation of paint, causing chalking, cracking, and ultimately peeling. - "Temperature changes" → Expansion and contraction of the paint film and substrate due to temperature changes can cause cracking and peeling. 3. Incorrect Paint Selection - "Weather resistance" → Paint suitable for outdoor or indoor use, and heat resistance, has not been chosen according to the usage environment. - "Compatibility of paints" → When applying different types of paint in layers, compatibility has not been considered. - "Compatibility with materials" → Paint suitable for materials such as wood, iron, and stainless steel has not been used. 4. Poor Application - "Insufficient drying" → Moving to the next step before the paint has completely dried weakens the paint film. - "Excess or insufficient application amount" - "Layering interval" → The timing for applying additional layers is either too early or too late.

• Rust Inhibitor
• paint
• Exterior coating materials

To maintain a beautiful paint film for a long time without peeling, the following four points are important: 1. Degreasing Treatment Metal materials are often exposed to cutting oils and other substances during cutting and processing. Therefore, most processed materials have oil residues on their surfaces. If there is oil on the surface, the paint will be repelled, leading to poor adhesion. It is important to thoroughly wipe off the oil using organic solvents such as thinner and allow the surface to dry. 2. Substrate Treatment (Surface Preparation) Prepare the substrate to be suitable for painting. This process, also known as "keren," involves scraping the surface to create scratches that enhance paint adhesion. If rust has already formed, painting over it will allow rust to progress beneath the paint, so it must be removed. Painting over deteriorated paint films can also cause poor adhesion, so the old paint film should be stripped away. Methods include blast treatment, sanding with a disc sander, or scrubbing with a wire brush or sandpaper. After processing, debris will be generated, so be sure to clean thoroughly! 3 and 4 are detailed in the basic information below.

• Rust Inhibitor
• paint
• Exterior coating materials

"Red Rust" Chemical formula: Fe₂O₃, Cu₂O Target metals: Iron, steel, copper, copper alloys The "red rust" is something we often see in our daily lives. For red rust to occur, air and moisture are necessary, and corrosion begins through "ionization," which robs electrons from iron. As long as it is in contact with air and moisture, red rust (Fe₂O₃) will erode internally, ultimately causing the metal to crumble. However, the red rust that occurs on copper (Cu₂O) has some ability to prevent corrosion from water and seawater, so it is sometimes used as a raw material for ship bottom paint. "Black Rust" Chemical formula: Fe₃O₄, Ag₂S Target metals: Iron, silver This "black rust" is commonly seen on iron frying pans and cast iron skillets. It is generated by heating the target metal at high temperatures and is called "dry corrosion" because it does not involve water. Since black rust (Fe₃O₄) does not erode internally, it can actually suppress red rust by covering it. The black rust (Ag₂S) that occurs on silver items such as tableware and jewelry is caused by a "sulfide reaction," where sulfur components found in skin and hair bond with silver. This black rust also does not erode internally. Continues to basic information ↓

• Rust Inhibitor
• paint
• Exterior coating materials

"What is SSPC SP-2?" SSPC is a non-profit organization in the United States that specializes in coatings for the protection of industrial and marine structures. It is one of the standards established for surface preparation. Surface treatment is performed using hand tools such as files, wire brushes, and scrapers. Harmful substances such as loosely adhered rust, mill scale, and paint films are removed, but firmly adhered rust, mill scale, and paint films are permissible. Inspection is conducted visually. "What do 'surface preparation' and 'substrate treatment' mean as written in the specifications?" Generally, it is considered equivalent to the ISO St2 standard. [For information on ISO standards, please refer to the link below] [ISO St2] Surface preparation performed with hand tools.

• Rust Inhibitor
• paint
• Exterior coating materials

"ISO St2" ISO is a non-governmental organization headquartered in Geneva, Switzerland, aimed at establishing internationally common standards. It is one of the standards set for surface preparation. Surface treatment is performed using hand tools such as files, wire brushes, and scrapers. Harmful substances like loosely adhered rust, mill scale, and paint films on the surface are removed, but firmly adhered rust, mill scale, and paint films are permissible. The ISO standard compares the condition of steel before and after blasting through photographs, allowing for the assessment of processing quality by comparing actual photos and products. "Benefits of ISO St2" When using blasting or power tools, equipment is required, and dust and noise are generated, making it a standard chosen when such operations are difficult due to environmental considerations. Additionally, since it requires a significant amount of time and cost, it is not suitable for large-scale or extensive work, but it may be used for surface preparation in cases of partially damaged paint. While it is a convenient method as it does not require equipment, it cannot remove firmly adhered rust, mill scale, or paint films.

• Rust Inhibitor
• paint
• Exterior coating materials

"The Causes of Stainless Steel Rusting" Stainless steel has the characteristic of being resistant to rust, but it is not completely rust-proof! There are four main causes of rusting in stainless steel. 1. Contaminated Rust This phenomenon occurs when stainless steel comes into contact with other types of metals, causing the passive film to break down and resulting in rusting of the stainless steel. Stainless steel that has been scratched by other metals may gradually rust from the damaged areas. 2. Salt and Acidity The passive film that protects stainless steel from rust is vulnerable to salt and acids. In areas such as coastal regions, where it may come into contact with acidic chemicals, stainless steel can rust. 3. Dirt and Moisture Areas where dirt or water are present can lead to the destruction of the passive film, resulting in rust. 4. Welding and Bending Processes Welded or bent areas may retain residual stress from the processing. If this residual stress remains, it can lead to deterioration of the crystal structure, resulting in rust formation.

• Rust Inhibitor
• paint
• Exterior coating materials

"How to Remove Rust" 1. Use a rust remover It can dissolve and reduce mild rust. It allows you to remove rust without scratching the surface, and it's easy since you just apply it and wipe it off afterward. Since it is a chemical product, be sure to thoroughly check the usage instructions and disposal methods before use. 2. Use sandpaper or a wire brush for polishing Mild to moderate rust can be removed or reduced by polishing with paper or a brush. It takes time and effort, but it is the most cost-effective way to remove rust. Be careful not to apply too much pressure, as it may cause significant scratches on the surface. 3. Use power tools for polishing Mild to moderate rust can be removed or reduced by polishing with power tools. This method allows you to remove rust more quickly and easily than rust removers or sandpaper. However, using power tools carries a higher risk of injury or accidents, so be sure to wear appropriate protective gear. However, methods 1, 2, and 3 can be quite labor-intensive for removing extensive or severe rust, so they are not recommended. So, how can you remove extensive or severe rust?↓↓

• Rust Inhibitor
• paint
• Exterior coating materials

"Ultimate Paint Stripping Prevention Measures" The measures against paint stripping are very simple. - Surface preparation is done through blasting, removing all foreign substances attached to the surface. - Use paint with excellent adhesion to the material appropriately. - Select a coating specification with high corrosion resistance and weather resistance to prevent stripping for a long time. - Manage the application to maintain an appropriate film thickness of the coating. By adhering to the above four points, a paint that will not peel for over 30 years can be completed! 【Improving the Service Life of Heavy Anti-Corrosion Coatings】 https://www.nc-net.or.jp/company/98405/product/detail/186702/ Harada Iron Works is equipped with large air-operated blasting equipment. We commonly use "grit blast" and "sand blast" abrasives, but we can also accommodate other abrasives, so please feel free to inquire. After blasting, prompt rust prevention treatment is necessary, but since Harada Iron Works also has a painting factory, we can provide a consistent response from blasting to topcoat application in-house. For more details, please see the related links below.

• Rust Inhibitor
• paint
• Exterior coating materials

"About Heavy Anti-Corrosion Coating" Heavy anti-corrosion coating refers to a type of protective coating specifically designed for steel structures (such as bridge piers that cross the sea, plants operating in coastal areas, and port crane facilities) constructed or installed in highly corrosive environments like coastlines and offshore locations, with the aim of extending the repainting cycle. Before the invention of heavy anti-corrosion coating, general specifications were used for painting; however, in highly corrosive environments, frequent repainting and inspections became necessary, leading to issues. Since 1970, a painting specification with higher durability, known as "heavy anti-corrosion coating," has been developed. "Durability of Heavy Anti-Corrosion Coating" The expected durability of heavy anti-corrosion coating is said to be 50 years for new applications and 40 years for repainting projects. Due to the thicker film thickness, it is less affected by thickness reduction due to aging, and regular maintenance can further extend its lifespan. Additionally, topcoat materials used include urethane resin paint and fluororesin paint, with fluororesin paint offering superior weather resistance, thus ensuring greater durability. [Urethane Resin Paint] Film degradation after the second year: 2.0 μm/year [Fluororesin Paint] Film degradation after the seventh year: 0.5 μm/year

• Rust Inhibitor
• paint
• Exterior coating materials

"Painting Specifications" Primer paint for stainless steel Urethane resin topcoat [Metallic Bronze] Clear coat It was a complex shape made of decorative wire mesh used in architectural interiors, but we were able to finish it beautifully without any missed spots. Although we usually focus on painting machine parts, we can also accommodate parts where aesthetics are prioritized! Stainless steel has a beautiful appearance even without paint, but adding color can enhance its beauty even further. Although stainless materials like SUS304 are said to be difficult to paint, it is not a problem for Harada Ironworks. [Is painting on stainless steel possible? Impossible? About the methods] https://www.nc-net.or.jp/company/98405/product/detail/197530/ Stainless steel like SUS304 has the characteristic of being resistant to rust, but it does not mean it is completely rust-proof. By applying paint, we can further improve weather resistance and make it "more rust-resistant and beautifully finished!" [Can stainless steel rust?! Causes and methods to remove rust] https://www.nc-net.or.jp/company/98405/product/detail/207003/

• Rust Inhibitor
• paint
• Exterior coating materials

Blasting processing is a type of "substrate adjustment" that involves simultaneously spraying compressed air and abrasives to collide the material and the abrasives at high speed. The abrasives that collide at high speed scrape away the surface of the material, exposing it. The surface of untreated materials often has a lot of oxidation films (mill scale), rust, and impurities attached. If these impurities are not removed, the paint will quickly peel off. Careful substrate adjustment can prevent painting defects in advance. Blasting does not use chemicals and offers a wide variety of abrasives, allowing processing regardless of the material type, which is a significant advantage. Additionally, it is very effective not only for painting but also as a pre-treatment for plating, lining, and coating. The countless irregularities created by the impact of the abrasives increase the contact area and allow for the 'anchor effect' where the material penetrates into the gaps and hardens. This effect significantly increases adhesion, resulting in a more beautiful finish for the paint. Paint that is free of impurities and strongly adheres is said to have a rust prevention effect that lasts 3 to 4 times longer compared to regular paint. This can reduce the frequency of repainting, repairs, and maintenance, extending intervals and thereby saving resources and costs.

• Rust Inhibitor
• paint
• Exterior coating materials

【For information on ISO standard surface preparation, click here】 https://www.nc-net.or.jp/company/98405/product/detail/210553/ 'ISO Sa1 Work Method' 1. Remove any slag, welding spatter, etc. that is adhered to the surface. 2. Use solvents to remove any oils, greases, etc. that are adhered to the surface. 3. Remove all foreign substances adhered to the surface by blasting. 4. Remove dust and debris with clean, dry air. 'ISO Sa1 Precautions' Feasibility of construction depending on environmental conditions - Please stop work on days with bad weather or high humidity. Painting process after completion of work - The surface after blasting becomes active and rust will form in a short time, so painting needs to be done promptly. - If rust occurs again before painting, blasting treatment must be performed again. - Compare with the photos in the ISO visual book to determine the acceptability of the processing.

• Rust Inhibitor
• paint
• Exterior coating materials

"Benefits of Using ISO Sa2" ISO Sa2 is the third highest cleanliness standard in surface preparation. Higher standards such as ISO Sa3 and ISO Sa2.5 require the removal of almost all surface contaminants, but Sa2 allows for a broader range of acceptable conditions, making it possible to reduce costs and time. The acceptable level of adhered dirt is such that it does not detach with a putty knife that has no blade. Although some dirt may remain after blasting, the cleanliness is still superior compared to ISO St3, known as two-grade cleaning, and high adhesion of the paint is expected. By removing foreign substances through blasting and creating a rough surface, the performance of the paint can be maximized, preventing early peeling of the coating and extending the product's lifespan. This type of specification is chosen for products used outdoors. "Method for ISO Sa2 Work" 1. Remove slag, welding spatter, and other contaminants adhered to the surface. 2. Use solvents to remove oils, greases, and other substances adhered to the surface. 3. Remove all foreign substances adhered to the surface through blasting. 4. Use clean, dry air to remove dust and debris.

• Rust Inhibitor
• Exterior coating materials
• paint

The difference between shot and grit is not in the material or processing method, but in the shape. There are various shapes of abrasives (grinding materials) used in blast processing, and the processing effect and finish can vary greatly depending on the shape. "About the shapes of blast abrasives" The shapes of abrasives can be broadly divided into three types: 1. Spherical / Round Cut This shape is cylindrical or polygonal with edges ground to approach a spherical form, referred to as "shot," "beads," or "round cut," with many products named with the material name before or after. Example: Steel shot, stainless beads 2. Cylindrical / Wire Cut This shape is cylindrical, created by finely cutting wire material. It is referred to as "wire cut" or "cut wire," with many products named with the material name before or after. Example: Steel cut wire, stainless cut wire 3. Polygonal / Sharp Angle This shape has many sharp angles and is characterized by a polygon with many pointed corners. It is referred to as "grit," with many products named with the material name before or after. Example: Steel grit, stainless grit

• Rust Inhibitor
• Exterior coating materials
• paint

"About substrate adjustment and surface preparation" This is a process performed as a pre-treatment before painting, aimed at making the substrate more suitable for painting. "Substrate adjustment" is a type of surface treatment method, commonly referred to as "grinding work" or "surface preparation." It involves removing foreign substances such as rust, dirt, oil, and oxidation films that adhere to the surface before painting, thereby preparing the surface for painting. The methods and precision are defined by standards such as "SSPC standards," "ISO standards," and "SIS standards." "About SSPC Standards" The Steel Structures Painting Council (SSPC) is a non-profit organization based in the United States that establishes standards specialized in coatings that protect industrial and offshore structures. SSPC focuses on areas such as painting and substrate adjustment, and has established numerous standards related to substrate adjustment. [SSPC Standards: Work Methods and Precautions] https://www.nc-net.or.jp/company/98405/product/detail/208826/

• Rust Inhibitor
• paint
• Exterior coating materials

Even for bolt parts and bolts with special shapes, they can be thoroughly processed through blasting. Protective measures are necessary for the threaded parts, but our craftsmen carry them out carefully by hand, ensuring there are no missed spots or inadequate processing. The construction period varies depending on the customer's quantity and requirements, but we strive for prompt responses. ◎ A bolt is a mechanical element used to tighten and secure parts together, and is a type of screw. It consists of a shaft with male threads and a head, and is used in conjunction with a nut or tightened into a hole with female threads. ◎ Blasting (shot blasting/grit blasting/sand blasting/type 1 surface preparation) This process involves spraying compressed air at high pressure along with particles called abrasives, which collide with the product to remove dirt, grime, and paint from the surface. ◎ Grit blasting (blast/type 1 surface preparation) This is one method of surface treatment (preparation). There are four types of surface preparation, and blasting is the base treatment for the highest grade, type 1 surface preparation. Harada Ironworks Hiroshima Official Link

• Rust Inhibitor
• Special Construction Method
• paint

About Coating Coating is performed for various purposes, such as rust prevention, aesthetic enhancement, and functionality. Epoxy resin paint has excellent rust prevention and adhesion properties and is mainly used for priming. Additionally, polyurethane resin paint is made by combining polyol resin and isocyanate. As product information, the coating specifications for a product with dimensions of 2000mm × 2000mm × 500mm are provided. Zinc-rich primer is applied once, epoxy resin paint is applied twice, and polyurethane resin paint is applied once, with a minimum film thickness of 320μm. The video captures the state after the application of zinc-rich primer on both sides and one side of epoxy resin paint has been completed. Although the shape is complex, the coating was applied thoroughly. The construction period is expected to take about two weeks. Harada Iron Works Hiroshima Official Link

• paint
• Exterior coating materials

Both production and painting undergo thorough inspections by our in-house inspection personnel upon completion, checking for dimensional accuracy and coating thickness, among other factors. We also calibrate our inspection instruments annually, keeping quality as our top priority. For more details, please refer to the PDF download below. For all your blasting and painting needs, trust us. Harada Iron Works Co., Ltd. TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Harada Iron Works Hiroshima Official Link

• paint
• Interior and exterior construction accessories
• Scaffolding and Support Materials

We will respond to our customers' troubles and turn them into satisfaction. For more details, please refer to the PDF download below. You can trust us with blasting and painting. Harada Ironworks Co., Ltd. TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Harada Ironworks Hiroshima Official Link

• paint
• Sign construction
• Dam construction

This is a lift owned by our company. We repainted it in-house at the end of the year, so it looks shiny and new. For more details, please check the PDF download below. Leave the blasting and painting to us. Harada Ironworks Co., Ltd. TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Harada Ironworks Hiroshima Official Link

• forklift
• paint
• Exterior coating materials

We performed painting work on the customer's frame. We used blasting for surface preparation, and the painting was done afterward. There were some difficult areas to paint, but we ensured the appropriate film thickness. The duration of this project was a total of 4 working days. For more details, please refer to the PDF download below. For blasting and painting, please leave it to us. Harada Ironworks Co., Ltd. TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Harada Ironworks Hiroshima Official Link

• forklift

◎ Build H Steel (BH English: build H) If you need a cross-section that is not available in standard H steel, we create Build H by welding. The welding can be corner welds or complete penetration welds with a K-shaped groove, depending on the structural design. Welding distortion is corrected by air cooling or water cooling after heating. Stainless steel is often used in its raw form without painting, so we sometimes receive inquiries like this. The product this time had relatively noticeable machining marks, but we were able to hide the overall scratches by taking the time to sandblast it. Blurring the scratches takes time, but it can lead to uneven application, so we repeatedly check to ensure that the aesthetics do not worsen. Since the delivery time was the shortest possible, we arranged for shipping the day after arrival. Harada Iron Works Hiroshima Official Link

• Rust Inhibitor
• Special Construction Method
• paint

Due to the small quantity of the product, we usually use airless spray, but we chose spray gun painting to save on paint. With a spray gun, we can minimize waste and effectively paint with a small amount of paint. The finish turned out beautifully and glossy. This project was completed in three working days. For more details, please refer to the PDF download below. For blasting and painting, please leave it to us. Harada Iron Works Co., Ltd. TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Harada Iron Works Hiroshima Official Link

• forklift

The 6" size strainer has been coated twice with heat-resistant epoxy phenol paint, achieving a total film thickness of 250μm. The flanges and nameplates were protected, and after performing paint stripping and substrate preparation using grid blasting, the painting was done again. Compared to the off-the-shelf products upon arrival, the finish is equally impressive. ◎ Strainer (English: Strainer) is a general term for a mesh device used to remove solid components from liquids. ◎ Blast (Shot blast/Grid blast/Sand blast/Type 1 scraping, English: blast) involves spraying compressed air at high pressure along with particles called abrasives to remove dirt, grime, and paint from the surface by impacting the product. ◎ Painting (English: Painting) is a type of surface treatment for metals that forms a coating on the surface by applying paint. It has various applications, including rust prevention, aesthetics, and functionality. ◎ Epoxy resin paint (English: Epoxy resin) is a general term for synthetic resin paints that use epoxy resin. Harada Iron Works Hiroshima Official Link

• paint
• Exterior coating materials
• Sign construction

◎Grit Blast (Blast/Type 1 Surface Preparation, English: Grit blast) One of the surface treatment (preparation) methods. There are four types of surface preparation, from Type 1 to Type 4, and blast is the substrate treatment of the highest grade, Type 1. ◎Sand Blast (Blast/Type 1 Surface Preparation, English: Sand blast) One of the surface treatment (preparation) methods. There are four types of surface preparation, from Type 1 to Type 4, and blast is the substrate treatment of the highest grade, Type 1. For stainless steel and cast iron specifications, we can accommodate lot sizes from 1 to 1,000 pieces. Grit blast uses hard abrasives, resulting in a larger surface roughness. It also shortens construction time, making it suitable for large fabricated products and paint stripping. On the other hand, sand blast uses softer abrasives, resulting in less surface roughness. It is suitable for thin materials and those with minimal shape changes. Additionally, sand blast can be applied to non-metal products as it uses non-metallic abrasives. We also accept inquiries regarding abrasives and other related matters. Harada Iron Works Hiroshima Official Link

• Rust Inhibitor
• Special Construction Method
• paint

The factory is located in Hiroshima, covering an area of 3,700 square meters, with spacious buildings. The building boasts a size of 1,120 tsubo and is just a 5-minute drive from the Kanon interchange on the Hiroshima Expressway Route 3. This makes it easily accessible even from distant locations. Inside the factory, there is also a 10-ton crane, and there is a workshop on the second floor, allowing us to handle a wide range of products from small parts to large assemblies. Our factory performs various tasks such as can manufacturing and painting. In can manufacturing, we cut, drill, and weld metals such as iron and stainless steel to create products in various shapes, including tanks, bridges, steel frames, and platforms. Additionally, in the painting process, we apply paint to the surface of metals to achieve rust prevention, aesthetic appeal, and enhanced functionality. Thanks to the excellent facilities and location of the factory, we can meet various customer needs, including total cost reduction, shortened delivery times, improved quality, and simplified process management. We also welcome transactions from distant locations, so please feel free to consult with us. Harada Iron Works Hiroshima Official Link

• Rust Inhibitor
• Special Construction Method
• paint

◎Tank (English: tank) A sealed container used primarily for storing, transporting, and storing liquids, powders, and gases, maintaining physical properties such as pressure. ◎Canning (English: Canning) Creating various shaped products such as tanks, bridges, steel frames, and supports by cutting, drilling, and welding metals like iron and stainless steel. ◎Painting (English: Painting) A type of surface treatment for metals that forms a coating on the surface by applying paint. It has various applications such as rust prevention, aesthetics, and functionality. ◎Anticorrosive paint (Primer/Rust prevention/Anticorrosive paint) Applying rust prevention paint to the surface of an object to prevent corrosion. In-house manufacturing completed from tank canning to painting. We achieved customer satisfaction in terms of quality, delivery time, and total cost. Harada Iron Works Co., Ltd. TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Harada Iron Works Hiroshima Official Link

• Rainwater tank
• Drilling Machine
• Ground foundation construction method

◎Painting A type of surface treatment for metals that forms a coating on the surface by applying paint. It has various applications such as rust prevention, aesthetics, and functionality. ◎Epoxy Resin A general term for synthetic resin paints made using epoxy resin. It has excellent rust prevention and adhesion properties, making it the mainstream choice for primer paints. However, it is weak against ultraviolet rays and may discolor, so it is common to apply a topcoat over it. ◎Polyurethane Resin Paint Polyurethane paint is made by mixing polyol resin as the main agent with an isocyanate hardener. It has excellent weather resistance and possesses gloss and beautiful luster, making it suitable for use as a topcoat. Size 1200×500 Quantity 10 units Construction period Approximately 4 days This time, only painting is being carried out. After degreasing, it is finished with two coats of epoxy resin and polyurethane resin paint. The scenery reflects and appears like a mirror. Even requests that may seem difficult are approached with the aim of exceeding expectations. Harada Ironworks Hiroshima Official Link

• Power generation facilities
• Water Supply Facilities
• paint

◎Blast (Shot Blast/Grid Blast/Sand Blast/Type 1 Surface Preparation) By spraying compressed air at high pressure together with particles called abrasives and colliding them with the product, it removes dirt, grime, and paint from the surface. ◎Sand Blast (Blast/Type 1 Surface Preparation) One of the surface treatment methods (surface preparation). Surface preparation ranges from Type 1 to Type 4, and blasting serves as the substrate treatment for the highest grade, Type 1 surface preparation. [In-house manufactured automatic recovery blast equipment] Width 6m × Depth 10m × Height 3m Capable of handling weights up to 10 tons. Here is a comparison image of sand blasting. Our company is equipped with large sand blasting facilities. The longevity of paint is determined by substrate preparation. No matter how excellent the paint used, neglecting substrate preparation will result in significant differences after 5 or 10 years. Our company handles many one-of-a-kind items, so please contact us regarding small lots or prototypes, and we will do our utmost to accommodate you. For areas that do not require construction, we will ensure proper masking and protection. Harada Ironworks Hiroshima Official Link

• Rust Inhibitor
• Special Construction Method
• paint

◎Blast (Shot Blast / Grit Blast / Sand Blast / Type 1 Surface Preparation) By spraying compressed air at high pressure together with particles called abrasives and colliding them with the product, it removes dirt, grime, and paint from the surface. ◎Grit Blast (Blast / Type 1 Surface Preparation) One of the surface treatment methods (surface preparation). There are four types of surface preparation, from Type 1 to Type 4, and blast treatment serves as the substrate treatment for the highest grade, Type 1. ◎Sand Blast (Blast / Type 1 Surface Preparation) One of the surface treatment methods (surface preparation). There are four types of surface preparation, from Type 1 to Type 4, and blast treatment serves as the substrate treatment for the highest grade, Type 1. For large blast equipment, we have our own automatic recovery type blast machines. The size of the blast room is the same for both. Other abrasives can also be used for construction, so please feel free to consult us. Harada Iron Works Hiroshima Official Link

• Spatial Design
• Piping materials (copper pipes, cast iron pipes)
• Bridge Materials

Technology for preventing metal rust, rust prevention. It protects metal surfaces through painting, plating, and coating to prevent rust formation. Grit blasting and sandblasting are surface treatment methods of the first type of surface preparation, which are important for the undercoating of painting. Painting is a method that forms a coating film on the surface of the metal. Metals naturally rust, which negatively affects their appearance and performance. Shot blasting is essential as a surface preparation for durable painting. Our company has been working on this technology for many years. ◎ Rust prevention A technology to protect metals that rust (most metals other than gold, such as iron, copper, stainless steel, silver, etc.) from rust. It prevents rust formation on metals by surface treating them with painting or plating, or by coating them with oils or linings. ◎ Painting A type of surface treatment for metals that forms a coating film on the surface by applying paint. Harada Iron Works Hiroshima Official Link

• Rust Inhibitor
• Special Construction Method
• paint

The removal of foreign substances and the uneven surface effect in surface treatment improve the adhesion of the paint. Furthermore, the dust-proof effect from blasting suppresses red rust. ◎ Blast (Shot blast/Type 1 Keren, English: blast) Compressed air at high pressure is sprayed together with particles called abrasive materials, colliding with the product to remove dirt, grime, and paint from the surface. ◎ Grit blast (English: Grit blast) One of the surface treatment (Keren) methods. Keren ranges from Type 1 to Type 4, and blasting serves as the substrate treatment for the highest grade, Type 1 Keren. ◎ Sand blast (English: Sand blast) One of the surface treatment (Keren) methods. Keren ranges from Type 1 to Type 4, and blasting serves as the substrate treatment for the highest grade, Type 1 Keren. It is called sand blast because "silica sand" was used as the abrasive material in the process. Harada Ironworks Co., Ltd. TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Harada Ironworks Hiroshima Official Link

• Rust Inhibitor
• Special Construction Method

Multi-functional rust prevention processing (shot blasting, steel shot) and layering are well-regarded. 【Features】 Long-lasting rust prevention performance, heat resistance, chemical resistance, and durability of the coating Quick removal of rust and old paint, resulting in a clean surface that can be reused Compatible with thin plates Blast processing possible in the state of fabricated products Large item processing also available with extensive equipment and a 10-ton crane TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Harada Iron Works Hiroshima Official Link

• Rust Inhibitor