When dry, acrylic paint is generally non-removable from a solid surface if it adheres to the surface. Water or mild solvents do not re-solubilize it, although isopropyl alcohol can lift some fresh paint films off. Toluene and acetone can remove paint films, but they do not lift paint stains very well and are not selective.
Acrylic paint on a surface becomes difficult to remove when dry. Water or mild solvents do not re-dissolve it, although isopropyl alcohol may be used to remove fresh paint layers. Toluene and acetone can remove the paint film but don't always effectively lift paint stains and are not selective in their action.