Varnishes are applied over dry paint films and have several purposes. Varnish protects the painting surface from the environment, protects the pigments from UV light, and can be used to change or unify a painting's surface sheen. Liquitex Matte Varnish spray is permanent and non-removable that leaves a matte finish. It is lightweight and nontoxic, and it dries to a non-tacky, hard, flexible surface. Details:400 mlMatte finishNontoxicPermanent and non-removable