Aluminum is a material that is resistant to rust, but by applying a non-peeling coating, its corrosion resistance can be further improved, making it last longer!
"Aluminum Coating Method" 1. Surface Cleaning It is essential to thoroughly remove any oils and dirt adhered to the surface. If the surface is not cleaned using organic solvents or detergents, the paint will not adhere properly and will peel off, so this step must be done carefully, and the surface must be thoroughly dried afterward. 2. Surface Polishing By polishing the smooth surface of the aluminum and creating fine scratches, the paint can penetrate into these scratches and adhere firmly to the aluminum. This process is also crucial for removing surface oxides, significantly affecting the outcome regarding paint peeling. 3. Specialized Primer If a specialized paint with good adhesion to aluminum is not used, there is a high possibility that it will peel off easily. Additionally, in environments with significant temperature fluctuations, using paint with insulation and heat shielding properties can prevent or reduce paint peeling due to thermal expansion. 4. Uniform Coating After completing the specialized primer, apply the intermediate and top coats suitable for the usage environment. Adhere to the appropriate drying times specified by the paint manufacturer and confirm that the paint has fully cured before applying additional layers. When painting, it is necessary to ensure that the paint film has a uniform thickness. Uneven thickness in the paint film can lead to areas that are prone to peeling, so caution is advised.
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"Benefits of Painting Aluminum" 1. Improved Corrosion Resistance Aluminum is less prone to rust due to its oxide film, but it can still rust. Especially when used outdoors, painting can protect it from "corrosion," "rust," and "oxidation," extending its lifespan. 2. Enhanced Wear Resistance By covering the surface with paint, the aluminum surface can be protected from scratches. It also helps prevent "transfer rust," which is a major cause of rust formation on aluminum. 3. Decorative Effect Adding color and texture allows for various design possibilities. "Reasons Why Aluminum Paint Peels Easily" 1. Smooth Surface The surface of aluminum is very smooth, making it difficult for paint to adhere properly, leading to peeling. 2. Special Primer Required Due to the unique properties of aluminum, a special primer must be used; otherwise, it will not adhere well and can easily peel off. 3. Difference in Thermal Expansion Rates Aluminum expands and contracts about twice as much as iron due to heat, so in environments with significant temperature changes, the paint may peel off. [Case Study 1] Painting on SUS304 https://www.nc-net.or.jp/company/98405/product/detail/215809/
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Turning your troubles into good experiences for our customers. We respond to such customer requests. From "nothing" to "something." Creating "one-of-a-kind" rather than "mass production." Harada Ironworks is here to fulfill your wishes. To meet the diverse needs of our customers, we provide a consistent production service from material procurement to painting and installation, helping to shorten delivery times and reduce total costs. With over 70 years of experience, we are committed to providing even greater "high added value" to our products through the skills and know-how we have honed over the years. If you have any inquiries regarding production or painting, please feel free to contact us. We look forward to hearing from you. For blasting and painting, leave it to us. Harada Ironworks Co., Ltd. Hiroshima TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Please feel free to contact us for consultations or estimates.
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Our company manufactures products tailored to the diverse needs of various sites. We respond to customer requests with our capabilities, advantageous location, and thorough quality and delivery management. You can trust us with everything from material ordering to can manufacturing, processing, surface preparation, and painting. Additionally, we have dedicated many years to research and development in rust prevention, establishing a solid technology and facilities as a "rust prevention department," and we also perform tasks such as paint stripping. Please feel free to contact us with any requests.