Watercolour Lightfast Test - Batch2 [in progress]
Lightfast test 'before' scans. Start date: August 4, 2020. Conditions: tropical country, placed at a south-facing window 24/7. Daylight from around 6am-6pm. Strong sunlight on swatches approximately 6+ hours a day.
Holbein
Sennelier
Wichitrong
Van Gogh
[3 month update - Nov 11, 2020] - no changes on all except Wichitrong PV19. visible fading has occurred despite lightfast pigment.
[5 month update - Jan 3, 2020] - no changes on all except very apparent fading on Wichitrong PV19, and very slight fading on Wichitrong PY154
Before lightfast test:
After lightfast test (5 months):
