The performance of the non-oriented silicon steel's environment-friendly coating was studied, including the water resistance, salt spray corrosion resistance, coating adhesion and layer resistance before and after bluing with different types of resins and different contents of boric acid. And the causes of such difference were analyzed by TG, FT-IR, SEM. The results show that the addition of boric acid will reduce the water resistance; the crosslinking curing resin has good corrosion resistance, but boric a...