［Objective］The non-oriented silicon steel self-bonding coating，as a novel assembly method coating for motor cores，could effectively prevent losses and vibration noise caused by coatingdamage. The self-bonding coating exists in three states：liquid state（State A），activated state（State B）， and fully cured state（State C）. Currently，there existed a challenging balance between the mutuallyinfluential properties of State B and State C coatings. Designing coatings that integrate mechanicalperformance，corrosion resistance，and bonding strength had become an urgent issue to address for self-bonding coatings.［Method］To resolve these challenges，this study employed alkyd resin and microencapsulated curing agents to modify the isocyanate-cured epoxy resin system，ultimately developing a composite self-bonding coating for non-oriented silicon steel with mutually independent curing processes between States B and C. The curing process and parameters were determined through thermogravimetric analysis and infrared spectroscopy of coatings in different states. The effects of mass ratios between modified alkyd and epoxy resins，primary curing temperatures，and microcapsule addition amounts on coating adhesion，corrosion resistance，and bonding strength were systematically investigated.［Results］The optimal formulation was achieved with a mass ratio of modified epoxy resin∶ modified alkyd resin∶microcapsules at 2∶2∶1. The optimal primary curing process involved heating at 100℃ for 60s，while the secondary curing process required 3 MPa pressure at 200 ℃ for 2 h. Under these conditions，the coating demonstrated a T-type bonding peel strength of 4. 03 N/mm，Class 0 adhesion，5H pencil hardness，and less than 1% corrosion area after 24-hour neutral salt spray testing.［Conclusion］This coating achieved excellent State B performance while maintaining State C bonding strength，essentially meeting the technical requirements for self-bonding laminated core applications.