Minimize rust removal from rebar after chipping. Stabilize rust just by applying, and proceed to the next process.
In tunnel maintenance, rust on rebar can cause concrete spalling and cross-sectional defects, leading to a decrease in the durability of structures. Particularly inside tunnels, issues arise from work restrictions, extended construction periods, and increased costs associated with repair work. In spalling repairs, it is necessary to treat the rust on exposed rebar after chipping, which traditionally required a lot of effort and time for scraping work. By using Select Coat N300, the remaining red rust on exposed rebar can be chemically treated and converted into a stable state. This allows for the omission of excessive rust removal work, contributing to the rationalization of the repair process, shortening of construction periods, and reduction of total costs. 【Application Scenarios】 - Spalling repair of rebar inside tunnels - Rust treatment of rebar before cement and mortar placement - Reduction of work burden in repair construction 【Implementation Effects】 - Suppresses the progression of rust on rebar, contributing to improved durability - Shortening of construction processes leads to reduced construction periods and costs - Adoption of water-based paint contributes to safety and reduced environmental impact
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basic information
【Features】 - A new rust prevention method that converts rust into a black coating, eliminating the need for complete rust removal (only loose rust is removed). - Corrosion protection technology that has undergone verification tests and performance evaluation by the Ministry of Land, Infrastructure, Transport and Tourism. - Applicable to iron surfaces, galvanized steel, aluminum, and other non-ferrous metals through new bridge construction technology. - Designed to accommodate everything from emergency measures to full-scale rust prevention strategies. - Easy and safe to handle as a water-based single-component product. 【Our Strengths】 Alpha Paint Co., Ltd. develops and manufactures high-performance, environmentally friendly coatings. The rust conversion type anti-rust paint "Select Coat N300" balances labor-saving and high rust prevention performance, and is adopted in many sites, including public works.
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【 Purpose 】 Rusty iron parts and products such as iron gates, fences, handrails, shutters, machinery, agricultural tools, buildings made of steel frames, tanks, piping, containers, bicycles, and multi-story parking lots. 【 Selection and Registration Achievements for New Technologies and New Construction Methods by Local Governments 】 March 8, 2024 - Registered in Fukuoka Prefecture's "New Technology and New Construction Method Utilization System" July 23, 2024 - Registered in Miyazaki Prefecture's "New Technology Utilization Promotion System" September 25, 2024 - Registered in Shizuoka Prefecture's "New Technology and New Construction Method Information Database" November 5, 2024 - Selected by the Tokyo Port Authority for "New Materials and New Construction Methods" August 6, 2025 - Selected by the Tokyo Bureau of Construction for "New Technologies" For detailed materials and performance data, please contact us separately.
Detailed information
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It has been selected as a method that can be directly painted over rust in the Ministry of Land, Infrastructure, Transport and Tourism's technical recruitment (thematic type). As a result of composite cycle testing, no rust, peeling, or blistering was observed, confirming its high corrosion resistance performance.
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It has been confirmed through tests that even non-ferrous metals such as aluminum and zinc plating, which are generally considered difficult to adhere to, show high adhesion properties. By simultaneously repairing corroded areas and protecting intact parts, an extension of the structure's lifespan can be expected.
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Company information
Alpha Paint Co., Ltd. is a company that sells high-performance eco-friendly products such as heat-insulating paints and rust conversion paints. Our main products include the heat-insulating paint "Select Coat S110" and the rust conversion anti-corrosion paint "Select Coat N300." Alpha Paint aims to prevent global warming and maintain and protect the environment through the development and manufacturing of eco-friendly products.
