"Underfix," a rust prevention material for repainting steel structures.
Forms a stable passive film under a thin coating! Adsorbs substances that promote corrosion lurking in the deep layers of rust!
■Formation of a stable passive film under a thin coating The passive film that forms on the surface of rebar in concrete, which is in a strongly alkaline environment, protects the rebar from rust. A similar stable passive film is also formed on the surface of steel coated with Underfix. ■Adsorption of substances that promote corrosion lurking in the depths of rust Chloride ions contained in airborne salt and sulfate ions present in acid rain are difficult to remove. The "powdered rust preventive agent" contained in Underfix adsorbs and neutralizes substances that promote corrosion. ■Effects of the powdered rust preventive agent blended in Underfix Underfix uses a powdered nitrite-based rust preventive agent that can be mixed with cement and other materials. It carries a large amount of nitrite ions within and around the layered structure of calcium-aluminum composite hydroxides. When it comes into contact with water, the nitrite ions spread throughout the coating and form a stable passive film on the surface of the steel, protecting it from rust. *For more details, please request materials or view the PDF data available for download.
- Company：アサヒボンド工業
- Price：Other
