Testing LightfastnessAh, watercolors - a skilled artist can make them look so fresh and easy! Without confidence in your paints and the affect that water has on them they can run amok.Testing Lightfastness in Art Features More Like This
Light can cause pigments to change drastically, which was something I wanted to see for myself. This project gave me a big jolt of confidence in my materials! Plus, a lot of hands on practice with graded washes.
Even when the paints faded or changed color, it was a big help to see exactly what those changes looked like - it is one thing to read about it, but so much nicer to learn by doing and seeing.
There are lightfastness testing kits available for sale, and several different methods of testing paints and pencils. I like this method because I didn't have to buy anything new, such as picture frames.
All that is required is to paint out some swatches, cut them in half, and then expose half to sunlight and hide the other half in darkness.