It is generally regarded as 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 are removed, but firmly adhered rust, mill scale, and paint films are acceptable. The ISO standard compares the condition of steel before and after blasting with 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 work is difficult due to considerations of the surrounding environment. Additionally, it requires a significant amount of time and cost, making it unsuitable for large-scale or extensive work; however, it may be used for surface preparation in cases of partially damaged paint. While it is a convenient method that 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 substances adhering to the surface. 2. Use solvents to remove oils, greases, and similar substances adhering to the surface. 3. Use hand tools to remove weakly adhering harmful substances from the surface. 4. Remove dust and debris with clean, dry air. "Points to Note for ISO St2" Work-related Hazards - Since tools will be used, it is necessary to wear appropriate protective equipment. 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 lead to early peeling of the coating. - Compare with photos from the ISO visual book to determine the suitability of the processing. At Harada Ironworks, 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" rather than "mass production." It is Harada Iron Works that fulfills 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 reducing lead times and 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, 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.