RANGER-Dina Wakley Media Gel Medium: Matte Finish. Ideal for extending acrylic paints and can be used to dilute paint without breaking down the pigments. Use as a flexible and heavy-duty adhesive. Ideal for adhering collage and mixed-media ephemera. Gel Medium is an excellent medium to use with resist techniques, glazing and can even be used as a sealant. This package contains one 4oz jar of matte finish gel medium. Acid-free. Non-toxic.