Delayed drying time facilitates easier blending of colours and enables a smoother coat over larger areas
This medium may change its viscosity
The drying times may vary depending on the quantity used and the environment.
TIPS
Suggested mix ratio is 1 part medium to 4 parts paint - experiment for varying results. A Drying times may vary re: quantity used and the environment. Practice usage before committing to your final artwork.
The varnish will protect the painting from dust, UV rays and yellowing. Plus it adds a layer of shine that somehow, almost as if by magic, pulls the whole painting together and makes it look even more amazing, bringing out the gorgeous vibrancy of the colors.