Aluminum is a material that is resistant to rust, but by applying a non-peeling coating, its corrosion resistance can be further enhanced, making it last longer!
"Aluminum Coating Method" 1. Surface Cleaning It is necessary to thoroughly remove any oils and dirt that are attached 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 very important as it removes surface oxides, which affects the outcome of paint adhesion. 3. Special Primer If a special paint with good adhesion to aluminum is not used, there is a high possibility that the paint will easily peel off. Additionally, in environments with significant temperature changes, using paint with insulation and heat shielding properties can prevent or reduce paint peeling due to thermal expansion. 4. Uniform Coating After completing the special primer, apply intermediate and top coats suitable for the usage environment. Adhere to the appropriate drying times specified by the paint manufacturer and ensure 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. An uneven paint film thickness 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 resistant to rust thanks to its oxide film, but it is not completely rust-proof. Especially when used outdoors, painting can protect it from "corrosion," "rust," and "oxidation," thereby 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 one of the major causes 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 Due to the unique properties of aluminum, a special primer must be used; otherwise, it cannot adhere properly and will 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 Iron Works is dedicated to fulfilling those desires. To meet the diverse needs of our customers, we provide a consistent production service from material procurement to painting and installation, assisting in shortening delivery times and reducing 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 Iron Works 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, excellent 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, and we possess solid technology and equipment as a "rust prevention department," also handling tasks such as paint stripping. Please feel free to contact us with any inquiries.