Insulating coating for electrical steel

The invention relates to the field of insulating paint, and discloses insulating paint for electrical steel. Comprising 15%-20% of epoxy resin, 8%-12% of a curing agent, 15%-20% of filler, 4%-6% of an antioxidant, 4%-6% of an ultraviolet light absorber, 4%-6% of a flame retardant, 4%-6% of a plasticizer, 3%-5% of a heat conduction agent, 4%-6% of an antistatic agent, 8%-12% of a self-repairing agent and 13%-17% of a nano modifier. By adding the antioxidant and the wear-resistant agent, the hardness of the coating is maintained, the oxidation resistance and the wear resistance are improved, the electrical steel can better resist oxidation and wear in the using process, the service life of the electrical steel is prolonged, and meanwhile, the heat-conducting filler and the high-temperature-resistant agent are added, so that the service life of the electrical steel is prolonged. The electrical steel can keep stable performance in a high-temperature environment, the application range of the electrical steel is ex