What happens to acrylic paint when it dries?

When acrylic paint dries, it undergoes a process where the water in the paint evaporates, leading to the formation of a durable, flexible layer that resembles plastic. This transformation occurs because acrylic paint is made of pigment suspended in an acrylic polymer emulsion. As the paint dries, the acrylic polymers coalesce, creating a continuous film that is water-resistant, flexible, and adheres well to many surfaces.

This plastic-like finish is one of the beneficial properties of acrylics, as it allows artists to create vibrant and lasting artworks. The other options do not accurately describe the drying process of acrylic paint: it does not turn into rubber, powder, or water, which highlights the unique chemical properties of acrylics that facilitate a solid and stable result after drying.