What is the scientific name of Dabai lacquer? White paint.

The scientific name is latex paint.

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.

All coatings with water as solvent or dispersion medium can be called waterborne coatings, including water-soluble coatings, water-dilutable coatings and water-dispersible coatings (latex coatings).