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 satin varnish spray is permanent and non-removable and leaves a satin finish. It is lightweight and nontoxic, and it dries to a non-tacky, hard, flexible surface. Details:400 mlSatin finishNontoxicPermanent and non-removable