▎ 摘　　要

NOVELTY - Water-resistant coating composition, comprises 70-90 wt.% polymer emulsion, 3-5 wt.% cross-linking agent, 5-15 wt.% auxiliary agent, 0.1-0.5 wt.% thickening agent, 0.1-0.3 wt.% dispersing agent, 0.1-0.5 wt.% defoaming agent, 0.1-0.2 wt.% preservative and 5-20 wt.% water as first component, and 40-60 wt.% Portland cement, 10-30 wt.% flame retardant, 10-20 wt.% calcined kaolin, 10-40 wt.% heavy calcium and 0.1-0.2 wt.% water reducer as second component, where the first component and second component in a mass ratio of 1 (0.8-1.2). The flame retardant is a flame retardant mixture modified by a titanate coupling agent. The flame retardant mixture includes ammonium polyphosphate, graphene, bismuth trioxide and antimony trioxide. USE - The water-proof coating composition is useful in building waterproof coating. ADVANTAGE - The composition: is environmentally friendly; has excellent flame retardant, bonding and comprehensive performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of water-resistant coating composition.