In 2025, the Chinese market for water-soluble rust inhibitors is expected to reach 2.86 billion yuan, representing a year-on-year increase of 19.2%.
Release time:
2025-04-24
According to the testing report from the China Industrial Anti-Corrosion Association, a composite system containing benzotriazole and phosphate esters can extend the salt spray test duration for carbon steel from 72 hours to 480 hours. Dynamic electrochemical impedance spectroscopy tests show that the charge transfer resistance value has increased by two orders of magnitude.
According to the testing report from the China Industrial Anti-Corrosion Association, a composite system containing benzotriazole and phosphate esters can extend the salt spray test duration for carbon steel from 72 hours to 480 hours. Dynamic electrochemical impedance spectroscopy tests reveal that the charge transfer resistance of this system increases by two orders of magnitude. These products are rapidly gaining traction in high‑end manufacturing sectors such as new energy vehicle motor housings and precision bearings, with a market size reaching RMB 2.86 billion in 2023 and a compound annual growth rate of 19.2%. From the perspective of application scenarios, the automotive manufacturing industry places particular emphasis on the compatibility of additives with galvanized steel sheets and aluminum alloys. In accordance with the CSAE256–2022 standard issued by the China Society of Automotive Engineers, anti‑rust fluids for automotive panels must pass a 96‑hour damp heat test without any white rust formation on the surface.
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