Thick bead coating and preparation method

The invention relates to a thick foaming paint which is characterized in comprising the following components, by mass: 18.5-28.2% of pure acrylic emulsion, 1.5-7.5% of a pigment, 55.5-78.5% of a filler, 0.5-1.3% of a wetting dispersant, 0.1-0.18% of a neutralizer, 0.1-0.5% of a preservative, 0.1-1.2% of a thickening agent, 1.0-2.1% of a film-forming aid, 1.0-3.2% of an antifreeze agent, 1.0-2.5% of a foaming agent, and 4.5-12.2% of water. The foaming agent is a foaming agent suitable for foam drilling. With the paint and the preparation method, a problem that traditional travertine is only suitable for an interior wall but not exterior wall is solved. The paint has the advantages of cracking resistance, no risk, and low cost. The paint has high practical value.