Derwent XL Graphite - Tin of 6
Generous blocks of dense graphite tones
Discovery Miles 2 490
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Tin of 6 XL Graphite. Generous blocks of dense graphite tones & water-soluble colour.
01 Oive Green (LF 8)
02 Dark Prussian (LF 8)
03 Raw Umber (LF 8)
04 Burnt Umber (LF 8)
05 Soft (LF 8)
06 Very Soft (LF 8)
LF - Lightfastness rating
Lightfastness refers to the chemical stability of a pigment under long exposure to light. Light can cause colour to whiten, darken, fade or completely disappear.
The Blue Wool Scale - two pieces of blue wool are used to test lightfastness. One is placed in the dark and the other in the equivalent of sunlight for a period of three months. After three months the two pieces of wool are compared and rated between 0 – 8. 8 is the highest rating and values of 6 or higher are considered to be lightfast.
- South Africa
- Derwent XL Graphite - Tin of 6
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