Prima Marketing Finnabair Art Ingredients. White, light-weight stones which are great add-on to gesso or art basics gels and pastes creating a customized product and effect. you can add art stones to the base of your choice, mix and apply on the project with a palette knife or glue it directly to the project using any of our art basics as an adhesive creating great heavy texture effect. great for painting and decorating after drying. archival-safe non toxic.