Coloured material that resists fading even when exposed to natural or artificial light.
A pigments resistance to fading on long exposure to sunlight. Watercolours are rated lightfast on a scale of I-IV. I and II ratings are the most permanent.
A pigments resistance to fading on long exposure to sunlight. Watercolors are rated lightfast on a s
Resistant to fading or other changes due to light.
A pigments resistance to fading on long exposure to sunlight. Watercolors are rated lightfast on a scale of I-IV. I and II ratings are the most permanent
Resistant to the destructive action of light.