The first component to all pure Watercolor painting is the wash.
A wash is a Color laid into an area too big to be accomplished by a single brushstroke.
The wash can be done on either wet or dry paper with different outcomes.
If the paper is wet, the wash will flow faster and smoothly (imagine painting smooth texture of sky).
A wash on Wet paper
Laying a wash on wet paper will leave no visible brushstrokes.
Cover the surface with Clean water using a Large brush.
Mix a Large puddle of color on your palette.
Always mix more color than you think you’ll need, since stopping halfway may cause patches and uneven results.
Maintain the same tilt of the board while applying the wash.
When making a large wash, paint a stroke, then attach another stroke beneath it.
Before the first brushstroke has time to dry.
Quickly reload the brush and paint the next horizontal stroke, touching the bead edge of the previous stroke.
It is important to work quickly and with the same speed, always reloading the brush with the same amount of paint and water.
A wash on Dry paper
A wash that is laid on dry paper will have controlled edges.
If you want your wash to maintain a specific shape, apply it on paper that is completely dry.
Make sure that the board is always on a tilt and that you always start the wash at the top, using horizontal brushstrokes.
Always use the Big Brush, making sure to put enough paint on it and work quickly.
You can combine different colors, creating marvellous Variegated Washes with different colours mingling together.