About substrate adjustment using blast.

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last updated：Dec 04, 2024

原田鉄工

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ISO Sa1 refers to one of the standards for surface preparation established by ISO, a non-governmental organization based in Geneva, Switzerland.

【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 work completion - 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 will need to be performed again. - Compare with the photos in the ISO visual book to determine the acceptance of processing.

Related Link - https://ja.nc-net.or.jp/company/98405/product/deta…

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basic information

"Benefits of Using ISO Sa1" ISO Sa1 is the lowest cleanliness standard for surface preparation performed by blasting. The next higher cleanliness standard, Sa2, requires that the surface be free of "most" mill scale, rust, paint, foreign matter, visible oil and grease, and dirt. In contrast, Sa1 allows for "weakly adhered" materials, which means that they can be removed with a putty knife that does not have a blade. Although some dirt may remain after blasting, it still allows for a reduction in work time and costs compared to ISO St3, known as two-type scraping, while also ensuring a high adhesion between the paint and the surface. By removing foreign matter through blasting and creating a textured 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 often selected for products used outdoors.

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Detailed information

Turning your troubles into good experiences for our customers. We respond to such customer requests. From "nothing" to "something." Creating "one-of-a-kind" instead of "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, helping to shorten delivery times and reduce total costs. With over 70 years of experience, we are committed to providing even higher 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.