Drying your watercolor painting will depend on your climate and humidity. I always prefer to dry my paintings naturally and if I can avoid it, not under direct sunlight. You loose pigment drying it with heat like a hair dryer.
Sometimes, in A more humid area, your paintings may take longer to dry. The colors can get spread on the sheet and ruin your work. You can use a hair dryer to avoid this.
The hair dryer will reduce the strength of the pigment in the paints and dull the color. Keep these things in mind to minimize that:
- Set and keep the hairdryer at a lower speed which will slowly dry the watercolors.
- Fasten your paper on all sides.
- Keep a distance of at least 10 inches (25 cm) between the hairdryer and your painting
- To avoid uneven spreading of the color on the paper don’t focus on a single point. Move it back and forth and also sideways alternately.
- The dryer should be used along all the sides of the painting to avoid the buckling
- The hair dryer should be used on both the front and the back side of unstretched paper.
- Don’t touch the painting with your finger after you’ve dried it.
Be patient and try to wait for it to dry.