Ask an Expert - Forum > Lightfastness of Stonehenge Colors
Hi, Is there any info on the lighfastness of the color in Stonehenge color papers? I’m especially curious about Warm White, Natural, Kraft, Pearl Grey. thanks
August 26, 2023 |
BH
BH
The Stonehenge papers measure <1 dE (delta E) after 80 hours fade
August 30, 2023 |
Legion Paper
Legion Paper
Thanks, if I understand correctly, that means the Stonehenge papers have a rating of Excellent in the ASTM lightfastness range. Is 80 hours a standard test?
September 2, 2023 |
BH
BH
The 80 hour fade test is the test we utilize. However, some use the Blue Wool test
September 5, 2023 |
Legion Paper
Legion Paper