Soft Pastel Lightfastness
When it comes to soft pastel painting our pigments are just there ready to use. Most of us pick up a stick of pastel and get to painting. I wonder how many pastellists read the labels on the soft pastel sticks? The label has not just the manufacturers colour code and name but also the lightfastness rating of each colour.
Now some colours are what they call fugitive. This means that they will fade over time. How long that time is and under what lighting conditions is determined by this test by the ATMS - American Testing Materials Standards. It has been a long time coming and thanks to IAPS we now have this available for all soft pastel artists to learn from. They have a video to share from YouTube about the testing and the results. It is surprising to see some of these results. Use the link below to view the video.
We have a discussion going about his subject over on the Facebook group page Pastel Secrets. It is free to join.
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The Curious Artist Blog-
talks about everything and anything to do with painting.
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