Blick StudioArtists' ColoredPencils and Sets
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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.
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.
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Material Safety Data Sheet
® Grumbacher is a registered trademark of Chartpak.™ Grumtine is a trademark.