Synthetic cow gall medium is a wetting agent that improves the flow of watercolor painting.
- Add 2-5 drops to the water, it can make the paint easier to apply and mix when creating a wash
- Wet paper with a little water and a synthetic cow gall mixture helps create a clean, even wash on hard paper and improves wettability.
Available in 59 ml jar, which features a dropper in the lid.
