▎ 摘　　要

NOVELTY - Aqueous calcium sulfonate cavity anti-corrosion coating material comprises 30-50 pts. wt. aqueous calcium sulfonate, 5-10 pts. wt. deionized water and 20-30 pts. wt. aqueous self-drying resin. USE - The coating material is useful in preparing automobile cavity anti-corrosion coating (claimed). ADVANTAGE - The coating material ensures improved anti-corrosion performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the aqueous calcium sulfonate cavity anticorrosive coating material, comprising adding aqueous calcium sulfonate and deionized water into a stirring kettle, stirring for 1-2 hours, then adding aqueous self- drying resin, continuously stirring for 30 minutes, and mixing uniformly.