How long can alum make latex paint fall off?

About ten minutes.

Alum water and white latex are easy to react, and this reaction can be used to peel off latex paint. Soak the clothes in hot water first, and then wash them with detergent. A little latex paint on ordinary clothes can be easily removed.

Latex paint is a kind of water-borne paint based on synthetic resin emulsion, with pigments, fillers and various additives added, also known as synthetic resin latex paint, which is an organic paint. Any coating with water as solvent or dispersion medium can be called water-based coating, including water-soluble coating, water-dilutable coating and water-dispersible coating latex coating. According to the different raw materials, latex paint mainly includes polyvinyl acetate latex paint, ethylene-propylene latex paint, pure acrylic latex paint and other varieties. According to the different application environment of products, it can be divided into two types: interior wall latex paint and exterior wall latex paint, and according to the gloss effect of decoration, it can be divided into matte, matte, semi-gloss, mercerized and glossy types.