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The charm of airless painting: 3,500 kg frame (surface treated).

Environmentally friendly processing: After degreasing and surface treatment with sandpaper, a lead and chrome-free rust preventive paint is applied.

Based on the customer's request, we applied a rust-proof paint that does not contain lead or chromium after the surface treatment of the frame. We prepared the surface using degreasing and sandpaper without blasting. Using an airless spray, we were able to create a uniform paint film. The construction period was two days, and since there was no specification for film thickness, we ensured a standard thickness of 35µm. Harada Iron Works is capable of providing high-quality painting according to customer requirements. Please consider us when you are thinking about painting. Harada Iron Works Hiroshima Official Link

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Causes of Paint Peeling and Countermeasures | Solutions for Peeling Problems

Peeling paint shortens the lifespan of the product and causes many issues, such as increasing the cost burden of repainting.

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 lead to cracking and peeling. 3. Incorrect Paint Selection - "Weather resistance" → Paint suitable for outdoor or indoor use, as well as heat resistance, has not been selected according to the usage environment. - "Compatibility of paints" → When applying different types of paint in layers, compatibility with each other 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 on to the next step before the paint is completely dry weakens the paint film. - "Excess or insufficient application amount" - "Layering interval" → The timing for applying additional layers is either too early or too late.

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About Heavy-Duty Protective Coatings | Extending Lifespan Beyond Service Life

The durability of heavy-duty anti-corrosion coatings is more than three times that of regular coatings, lasting between 30 to 50 years.

"About Heavy Anti-Corrosion Coating" Heavy anti-corrosion coating refers to a type of protective coating that is specialized for corrosion resistance and durability, aimed at extending the repainting cycle of 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. Before the invention of heavy anti-corrosion coating, general specifications were used for painting, but in highly corrosive environments, frequent repainting and inspections became necessary, which posed a problem. 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 coatings and 40 years for repainting work. Due to the thicker film thickness, it is less affected by thickness reduction due to aging, and regular maintenance further extends 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 deterioration after the second year: 2.0μm/year [Fluororesin Paint] Film deterioration after the seventh year: 0.5μm/year

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Heavy-duty anti-corrosion coating

Creating a solid foundation is crucial in painting! Leave it to our company, a professional contractor.

We would like to introduce salt-resistant and heavy salt-resistant, as well as weather-resistant and heavy weather-resistant coatings. Machinery (metal products) is exposed to significant threats (rust) depending on the environment in which it is installed. It is very important to establish appropriate coating specifications to protect machinery (metal products) from these natural threats. Please leave it to us, a specialized contractor. 【Coating Process】 ■ Phosphating (Zinc Phosphate Coating) ■ Primer (Epoxy Resin-based Primer) ■ Intermediate Coating ■ Top Coating (Polyurethane Coating) *For more details, please refer to the PDF document or feel free to contact us.

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Heavy-duty anti-corrosion coating

Select and apply heavy-duty anti-corrosion paint suitable for various applications such as corrosion resistance, weather resistance, wear resistance, and chemical resistance!

We would like to introduce our "heavy-duty anti-corrosion coating" that we offer. This coating is primarily designed to enhance the corrosion resistance of materials such as metal and concrete, allowing them to withstand long-term use. Its main applications include components and structures of bridges and highways. Additionally, it is necessary to select and apply heavy-duty anti-corrosion paints that are suitable for specific applications, such as corrosion resistance, weather resistance, abrasion resistance, and chemical resistance. 【Features】 ■ Coating designed to enhance the corrosion resistance of materials such as metal and concrete, allowing for long-term use. ■ It is essential to select and apply heavy-duty anti-corrosion paints that are suitable for specific applications, such as corrosion resistance, weather resistance, abrasion resistance, and chemical resistance. ■ The process includes anti-corrosion primer, base coat, intermediate coat, and top coat. *For more details, please refer to the PDF document or feel free to contact us.

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Primer required, prevents peeling.

If you apply topcoat paint without a primer, it will peel off. Compared to products that have both a primer and a topcoat, those without a primer have weaker adhesion to the substrate, making the paint film more prone to peeling.

When comparing products that only have a topcoat without a primer to standard painting products that include a primer, it was found that the products without a primer easily had their paint film peel off. Primer paint has the dual effect of preventing rust and strongly adhering to the substrate and underlayer, making it indispensable. Although the primer is not visible, it plays an important role in maintaining corrosion resistance. Additionally, if the primer is not applied properly, the topcoat may be unevenly applied or have inconsistencies, resulting in an unattractive finish. Furthermore, the primer enhances the permeability of the paint, allowing the topcoat to adhere better, which can improve the durability and anti-corrosive properties of the paint film. In other words, the primer is a crucial step that significantly affects not only the appearance but also the performance and lifespan of the paint. Therefore, skipping the primer can lead to a higher likelihood of peeling paint and rust-prone products, making it essential to always apply the appropriate primer.

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The painting done by our company has resulted in the product being finished remarkably beautifully.

Our products feature beautiful finishes. The painted surfaces shine like mirrors, even when viewed up close.

This product is exposed to wind, rain, and ultraviolet rays on the outside, and water flows inside, so painting is necessary. First, a type of shot blasting was used for surface preparation to remove dirt and uneven areas. After that, three layers of paint were applied. Since the painting specifications differ between the exterior and interior of this product, masking is done to prevent paint from getting on the inner surface before painting. The outer diameter is approximately φ3000, and the weight is about 5 tons. For the exterior painting specifications, a two-component polyamide amine cured modified epoxy resin is used for the primer, the same type of resin for the intermediate coat, and a two-component polyamide amine cured modified epoxy resin enamel for the top coat, resulting in a total film thickness of 120 μm. This product is finished without defects such as drips, painting flaws, or insufficient film thickness.

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ISO standards on surface treatment work methods and precautions.

ISO standards for surface treatment work methods and precautions.

What is ISO?" ISO is a non-governmental organization headquartered in Geneva, Switzerland, aimed at establishing internationally common standards. The standards are classified based on surface cleanliness (rust removal level) and construction methods. "Standards for Surface Preparation according to ISO" The standards for surface preparation according to ISO are divided into six types. Among them, the widely used ones are summarized below regarding "work methods" and "points to note." 【ISO St3】Surface preparation using power tools https://www.nc-net.or.jp/company/98405/product/detail/227861/ 【ISO St2】Surface preparation using hand tools https://www.nc-net.or.jp/company/98405/product/detail/228939/ The remaining four are listed under "Basic Information.

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Are there different types of rust? Red rust, black rust, white rust, blue rust, green rust, yellow rust, brown rust.

Did you know that there are seven types of rust: "red rust," "black rust," "white rust," "blue rust," "green rust," "yellow rust," and "brown rust"?

"Red Rust" Chemical formula: Fe₂O₃, Cu₂O Target metals: Iron, steel, copper, copper alloys The "red rust" is something we often encounter 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 inward, ultimately causing the metal to crumble. However, the red rust that forms on copper (Cu₂O) has some ability to prevent corrosion from water and seawater, which is why 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 referred to as "dry corrosion" because it does not involve water. Since black rust (Fe₃O₄) does not erode inward, it can actually suppress red rust by covering it. The black rust (Ag₂S) that forms on silver items such as tableware and accessories occurs due to a "sulfide reaction," where sulfur components found in skin and hair bind to silver. This black rust also does not erode inward. Continues to basic information ↓

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Burning and heavy anti-corrosion painting, also available for building and steel structure painting! 'Painting Service'

Single weight = 2t, length = 10M, width = 2.6M, height = up to 2.8M!

Our company manually performs every step of the baking paint process for automobiles. We accommodate large, thick, and long items, capable of handling sizes up to 2.8×2.6×10M with a thickness of 15mm or less. Additionally, we also accept orders for single items and individual pieces. 【Main Equipment】 ■ Large drying oven conveyor: Capable of baking at temperatures up to 180°C ■ Shot blast: Hand-operated blast compliant with ISO Sa2.5 ■ Crane, lift, painting machine, etc. *For more details, please download the PDF or feel free to contact us.

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