Compound type anticorrosive baking varnish

The invention belongs to the technical field of surface protection. A shielding effect of a coating on a corrosion medium is improved by adopting a composite structure of an epoxy amino baking varnishbottom layer and a fluorocarbon amino baking varnish surface layer and matching a silane coupling agent with an ion antirust pigment. Compound type anticorrosive baking varnish provided by the invention takes epoxy amino baking varnish as primer and fluorocarbon amino baking varnish as finish paint, and a material is prepared from the following components in parts by mass at least: the primer: 100 parts of bisphenol A epoxy resin, 0 to 10 parts of silane coupling agent, 28 to 45 parts of full-etherified amino resin, 12 to 25 parts of antirust pigment and a proper amount of mixed solvent; thefinish paint: 100 parts of fluoroolefin-vinyl ether copolymerized fluorocarbon resin, 13 to 25 parts of the full-etherified amino resin and a proper amount of mixed solvent. The compound type anticorrosive baking varnish provi