Flash rust inhibitors: Solve the Troublesome Flash Rust on Weld Seams!!!
Release Time:
2025-12-02
As we all know, submerged arc welding is a welding method where the electric arc burns under a layer of flux. Its inherent advantages such as stable welding quality, high welding productivity, no arc light and little smoke and dust have made it the main welding method in the manufacture of important steel structures such as pressure vessels, pipe section fabrication, and box-shaped beams and columns. In recent years, although many new high-efficiency and high-quality welding methods have emerged one after another, the application field of submerged arc welding has not been affected at all. Want to prevent flash rust in submerged arc welding? Where should we start? As a common welding method nowadays, submerged arc welding is most widely used in machinery manufacturing industries such as bridges and hoisting machinery.
However, after applying water-based paint, it is the part most prone to "flash rust". Due to the complex material reactions of weld seams, it is difficult for ordinary flash rust inhibitors to effectively inhibit "flash rust". In response to this, we have launched an anti-flash rust agent composed of organic complexes and various polymer compounds, which has a synergistic effect with anti-corrosion pigments. It has outstanding flash rust prevention performance on metal surfaces such as weld seams and cast iron, and excellent anti-flash rust performance when applied in low-temperature and high-humidity environments. It inhibits flash rust on weld seams, cast iron and sandblasted iron, with a recommended addition amount of 1%-2%. It effectively inhibits the cathodic potential difference reaction in weld seams and avoids the ionization of iron elements. On metal surfaces such as submerged arc welding and cast iron parts that are difficult to handle, the flash rust inhibitor CK34 has excellent performance. At the same time, it also improves the adhesion and salt spray resistance of water-based paint, making the submerged arc welding coated with water-based paint free from "flash rust" problems.
