Fresco Finish Chalk Acrylics by Paper Artsy are top-quality, highly pigmented, water-based matte finish paints, sold per 50 ml. (1.69 ounces) bottle. Use Fresco Finish on a wide variety of surfaces — paper, cardstock, canvas, metal, wood, ceramic, glass, etc. — with no need to undercoat or prime. The chalk finish is perfect to stamp on and most pens and markers write beautifully on Fresco Finish, so this is a perfect paint for art journaling! Dilute with water for a wash or with glaze for translucency. Shake well before use, easy clean-up with water.