It is necessary to remove harmful substances with weak adhesion, but this is only permissible for those that are firmly attached. This is a standard used when it is difficult to prepare the substrate by blasting.
"What is SSPC SP-2?" SSPC is a non-profit organization in the United States that specializes in coatings for the protection of industrial and marine structures. It is one of the standards established for surface preparation. Surface treatment is performed using hand tools such as files, wire brushes, and scrapers. Harmful substances such as loosely adhered rust, mill scale, and paint films are removed, but firmly adhered rust, mill scale, and paint films are permissible. Inspection is conducted visually. "What do 'surface preparation' and 'substrate treatment' mean as written in the specifications?" Generally, it is considered equivalent to the ISO St2 standard. [For information on ISO standards, please refer to the link below] [ISO St2] Surface preparation performed with hand tools.
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"Work Method for SSPC SP-2" 1. Remove slag and other contaminants adhering to the surface. 2. Remove dirt, oil, grease, etc., from the surface using SSPC SP-1 (solvent cleaning). 3. Remove weakly adhered hazardous substances from the surface using hand tools. 4. Remove dust and debris with clean, dry air. "Points to Note for SSPC SP-2" Confirmation of Contamination Status - It is necessary to confirm that the tools used do not contain moisture or oil. Regarding Work Procedures - Overly roughening or smoothing the surface may lead to early peeling of the coating. - Since the required finish condition varies depending on the state of the steel before surface preparation, it is important to clarify the acceptance criteria through photos and text. "Benefits of Using SSPC SP-2" SSPC SP-2 serves as the standard for surface preparation using hand tools, as blasting requires equipment and generates dust and noise, making it difficult to use in consideration of the surrounding environment. It is also sometimes used for surface preparation when repairing partially damaged coatings. While it is a convenient method that does not require equipment, it cannot remove adhered rust, mill scale, or coatings.
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Turning your troubles into satisfaction. We respond to the needs of our customers. 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 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.