Acrylic paint is also soluble in the solvent used to remove traditional varnishes. Thus, varnish application to an acrylic painting requires serious consideration. When a painting is being moved about, a frame will protect the sides. A frame should be large enough to receive a painting and permit it to be keyed out when necessary. It also should be in sound condition.
Frames can display paintings with or without a protective glass covering.
Ultraviolet filtering glass is sometimes placed over the painting to protect the painting surface from harmful ultraviolet light and also from dirt and fingerprints. Although a sheet of glass definitely protects the surface of a painting, it also changes the appearance of the painting. The aesthetic effect of a glass covering should be considered along with its protective qualities. If you have any questions about your painting, a paintings conservator can help you. Paintings conservators are professionally trained individuals with years of experience.