Gum arabic is the main binder in watercolor. It controls the flow of wet color, slows drying and increases gloss and transparency. Using allows color blending for longer and reduces staining. Dilute with water as required.Details:Pale2.54 fl. oz. (75 mL) bottle size6 bottlesSlows down drying processAdds transparency and glossEnhances control of flow behaviorReduces pigments soaking into paperEnsures pigments bond to surfaceRecommended for use with watercolor paints