▎ 摘　　要

NOVELTY - Weldable aqueous pre-coating primer, comprises polyurethane modified alkyd emulsion, acrylic modified epoxy emulsion, anti-rust pigment, aqueous conductive paste, and additives and water; where the anti-rust pigment includes iron oxide red, zinc molybdate and phosphate, and the phosphate includes zinc phosphate and/or aluminum phosphate. USE - The primer is useful in the preparation of an anti-rust weldable steel coating (claimed). ADVANTAGE - The polyurethane-modified alkyd emulsion and acrylic-modified epoxy emulsion are used as the film-forming materials, so that the product has good dryness, adhesion, mechanical properties and salt spray resistance, and at the same time, from the full life cycle of the product has ecological benefits from a perspective. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing a weldable aqueous pre-coating primer, comprising mixing the components.