Colorful substrate treatment specification table
Standard table for base adjustment types 1-3
Surface preparation standard table: Types 1-3 scraping, blasting, power tools, hand tools There are standards for surface preparation that include Types 1-3 scraping. Type 1 scraping is the highest level, with a rust removal rate of over 99% achieved through blasting (SSPC SP-10, ISO Sa3). Type 2 scraping uses power tools, while Type 3 scraping is done with hand tools. Each type of scraping has a specific rust removal rate, and the appropriate standard is selected based on the condition of the surface. ◎ Grit blast (blasting/Type 1 scraping in English: Grit blast) One of the surface treatment (scraping) methods. Scraping is classified from Type 1 to Type 4, and blasting serves as the substrate treatment for the highest grade, Type 1 scraping. ◎ Sand blast (blasting/Type 1 scraping in English: Sand blast) One of the surface treatment (scraping) methods. Scraping is classified from Type 1 to Type 4, and blasting serves as the substrate treatment for the highest grade, Type 1 scraping. Harada Ironworks Hiroshima Official Link
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