Ratings
| Lightfastness | I | Excellent Blue wool 7-8. The pigment will remain unchanged for more than 100 years of light exposure with proper mounting and display. (Suitable for artistic use.) |
|---|---|---|
| Transparency | T | Transparent Transparent |
| Staining | 4 | High-Staining Difficult to lift once dry. |
| Granulation | Y | Granulating Pigment particles are uneven and clearly visible. |