Grumbacher mediums thicken or thin paints without harming their adhesive, binding, or film-forming qualities, and allow artists to achieve increased flow and rapid or slow drying. Also proven to guard against yellowing and cracking.
Oil Painting Medium III — Dilutes oil color to speed drying time and improve paint flow. Add it directly to the color in small quantities. It's perfect for detail work.
® Grumbacher is a registered trademark of Chartpak.