JSP® PLASTER & STONE REMOVER Is a simple to use product. Simply fill the bottle with regular tap water and use. No measuring . Excellent for plaster & stone from bridges, crowns, inlays, splints, dentures orthodontic appliances, instruments. Rapidly penetrates joints, crevices and delicate areas better than any other cleaner. Leaves denture base clean. Safe for use on aluminum. Use directly in the ultrasonic tank, or in glass or plastic beaker. Safe for hands, no rubber gloves needed. Biodegradable product can be flushed down lab drain for disposal. High capacity for calcium and magnesium compounds. Dissolves large quantities of gypsum, lasts longer, and saves time. Plaster deposits disintegrate and dissolve in minutes.