Permanence is also called lightfastness and you'll want to check your label to see how each color rates on the ASTM (American Society for Testing and Materials) rating scale. Much of this is dependent on the quality of the pigments and how much filler-if any-is in the paint to cut down on cost. Permanence is the paint's durability given exposure to light and humidity. So, if you are thinking of upgrading to artist-quality paint, you may want to start with just 5 to 10 colors to test before making a bigger investment. The nice thing with watercolor paint is that mixing means you can extend your color palette greatly without investing in a wide range of colors.
You may not even notice much difference to begin with, and it will be lighter on your wallet. If you are a beginner, or just want to test your hand a watercolor painting, student quality should be just fine. As student watercolors usually have more synthetic binders and fillers, which keeps the cost down, but they tend to have less permanence. Professional, or artist-quality, watercolor paint is typically made with more pigment and comes in a wider range of colors. Just like many other art supplies, such as acrylic paints, watercolors come in two grades: student and professional. 4.3 Do you need specific watercolor brushes? How to Pick the Best Watercolor Paint Set Professional vs.
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