It is generally considered to be equivalent to the SSPC SP-2 standard.
"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.
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"Work Method for ISO St2" 1. Remove any slag or similar materials adhering to the surface. 2. Use solvents to remove oils, greases, and other substances adhering to the surface. 3. Use hand tools to remove harmful substances that are weakly attached to the surface. 4. Remove dust and debris with clean, dry air. "Precautions for ISO St2" Work-related hazards - Since tools will be used, it is necessary to wear appropriate protective gear. Confirmation of contamination status - It is necessary to confirm that the tools used do not contain moisture or oil. Regarding work procedures - Excessively roughening or smoothing the surface may increase the risk of early peeling of the coating. - Compare with the photos in the ISO visual book to determine the suitability of the processing. At Harada Iron Works, we also handle substrate preparation for St2, but since there may be insufficient cleanliness and adhesion in St2 substrate preparation, we generally recommend substrate preparation by blasting. As one of the few integrated blasting and painting factories, we can immediately paint in-house after blasting. For more details, please refer to the related links below.
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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" products instead of "mass production." At Harada Iron Works, we strive to fulfill your desires. To meet the diverse needs of our customers, we provide a consistent production service from material procurement to painting and installation, assisting in reducing lead times and total costs. With over 70 years of experience, we are committed to providing even greater "high added value" 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.