Ranger Ink Matte 4 oz Multi Medium. Rangers Multi Medium is an artist quality acrylic gel medium that can be used as a super strong adhesive acrylic paint extender or sealer. Use it in many mixedmedia techniques including image transfers or resist. Multi Medium is nonyellowing & dries clear. Available in 3 sizes. 5 oz. bottle with needle tip applicator 1 oz. jars with a convenient builtin brush & 4 oz. jars for larger projects. All sizes are available in Matte & Gloss finishes. Acid Free.. .