Re. Pyrrol Crimson PR 264: Bruce McEvoy at Handprint.com says:
'...all the tested paints [i.e.,brands of PR 264] are near the bottom end of acceptable lightfastness'. He has a couple of sample light-tested swatches that show even the DSmith version losing saturation, especially in its tint. JBlundell has her own lightfastness test page, but although she loves this Pyrrol Crimson, she hasn't included it in her L.F. tests.
Re. Pyrrol Crimson PR 264: Bruce McEvoy at Handprint.com says:
'...all the tested paints [i.e.,brands of PR 264] are near the bottom end of acceptable lightfastness'. He has a couple of sample light-tested swatches that show even the DSmith version losing saturation, especially in its tint. JBlundell has her own lightfastness test page, but although she loves this Pyrrol Crimson, she hasn't included it in her L.F. tests.