Watercolor painting needs unique techniques unlike acrylic or oil painting where the paints stays wherever they are put and dries in the similar form. Whereas main vehicle of the medium is water which is always active and fluid and changes the appearance when dried! And one has to be very careful with this medium, as it does not allow repainting or corrections. It also takes its own time to dry depending upon the quality and type of paper.
Following are some very basic techniques / washes to use watercolor:
• Flat Wash
It is the most basic technique in which water is first applied on the paper surface and then color pigment is mixed in sufficient quantity to fill entire wet area. It is easier to apply flat washes on sloping surface, slightly overlapping horizontal bands from top to bottom.
• Graded Wash
It is similar to flat wash that requires the pigment to be diluted slightly with more water for each horizontal stroke. As a result of this the wash fades out gradually and evenly.
After completion of the wash, it should be left to dry out completely. If you try to work on wet washes the results can be disastrous!
• Glazed Wash
It is similar to flat wash where artist applies thin, diluted layer of pigment over dry existing washes to adjust the color and tone of previous wash to achieve the desired effect.