Winsor & Newton Gum Arabic
Product Description

Gum Arabic increases watercolor brilliancy, gloss, and transparency, giving greater depth to each color. It slows down the drying time of paint, and can also be used for controlling spread when painting wet-on-wet. Gum Arabic can be mixed with Pearl Ex powder into a paste, let dry to harden, can then be used as paint, similar to H2O's. 75ml.