Available Sizes:
| 50ml | 500ml |
| PIUBL6 | PIUBL5 |
Art Spectrum® Ultramarine Blue Pigmented Ink
*Always shake well before use
| Pigment | Lightfastness | Opacity |
| PB15:3, PV23 | ASTM I | Transparent |
ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.
