8ml watercolor high pigment concentration, Self Evolving Minerals, Conforms with EN71-3, ASTM D4236
TRANSPARENCY semi-transparent
LIGHTFASTNESS +++ = at least 100 years lightfast under museum conditions.
The light fastness of this product is stand with “five stars” equivalent to international standard of “three plus sings”. The lightfastness of all colours has been tested according to EN71-3 & the ASTM standard D4236.
