TY - JOUR AB - Purpose– The purpose of this paper is to study the corrosion resistance and the insulating characteristics of an environment‐friendly chromium‐free coating on electrical steel.Design/methodology/approach– A water‐based semi‐inorganic environment‐friendly insulating coating on electrical steel was developed. The coating system of silane coupling agent and rare earth salt were used first in this coating to replace the chromate containing coating. In this study, it provided a successful combination of coating and passivation.Findings– Several test results, such as insulating ability, corrosion resistance, adhesion strength and hardness, showed that the performance of the film complied fully with the industry standards, particularly excellent in its corrosion resistance and the maximum corrosion resistance (neutral salt‐spray test) time up to 20 h.Originality/value– There have been few reports on the chromium‐free insulating coating on electrical steel, and described in the paper, this environment‐friendly insulating coating on electrical steel was found to be highly effective. VL - 57 IS - 6 SN - 0003-5599 DO - 10.1108/00035591011087154 UR - https://doi.org/10.1108/00035591011087154 AU - Lin An AU - Zhang Xian AU - Fang Dajing AU - Yang Miao AU - Gan Fuxing PY - 2010 Y1 - 2010/01/01 TI - Study of an environment‐friendly insulating coating with high corrosion resistance on electrical steel T2 - Anti-Corrosion Methods and Materials PB - Emerald Group Publishing Limited SP - 297 EP - 304 Y2 - 2024/04/25 ER -