Gum arabic is made from the sap of the acacia tree. There are multiple ways to use gum arabic for calligraphy inks.
Improves viscosity: Add a few drops to your ink to thicken it, reducing bleeding. Can be helpful if trying to use fountain pen ink or food coloring with a dip pen.
Bonding agent: Mix with gouache or powder pigments as the bonding ingredient (so that the ink doesn't wipe away after the water evaporates).
Decrease cracking: This is aimed at white inks like Bleed Proof and Kuratake Zig. As these are thick inks, dilute them with water and gum arabic.
• natural gum arabic for calligraphy
• 1 30 ml bottle
• glass bottle with dropper
• As this is made of tree sap, it is sticky. Wipe rim of bottle before replacing cap to avoid future sticking.