Technical properties
| Color Index | Pigment Red 2 |
|---|---|
| Colour Index number | 12310 |
| CAS | 6041-94-7 |
| Chemical class | Naphthol AS |
| Oil absorption | 61 ml/100 g |
| Density | 1.4 g/cm³ |
| Bulking volume | 3.7 l/kg |
| Stated shelf life | 48 months |
Fastness
| Linseed oil | 3 |
|---|---|
| White spirit | 3 |
| DEHT | 2 |
| Xylene | 2 |
| Acetone | 2 |
| Butyl acetate | 2 |
| Ethanol | 2 |
| Water | 5 |
| HCl 2,5 % | 5 |
| NaOH 2,5 % | 5 |
| Light: full shade | 6–7 |
| Light: 1:1 | 5–6 |
| Light: 1:3 | 4–5 |
| Weathering: full shade | 3 |
| Weathering: 1:1 | 2 |
| Weathering: 1:3 | 2 |
| Overspray | 2–3 |
| Heat resistance | C 140 °C |
Scales: light 1–8; other fastness properties 1–5. Higher values indicate greater fastness. Heat resistance is a guide value and depends on the binder and exposure time. Validate in the final formulation.
P: value in plastics. C: value in coatings. D: duller shade.
The data sheet provides no migration rating; Synthesia does not recommend this pigment for colouring PVC.
Main applications
- Nitrocellulose inks
- Water-based inks
- Decorative paints
Side applications
- Offset inks
- UV-curing inks
- Industrial paints
Official documentation
Synthesia technical data sheet · 01/10/2026 · English · 2 pages.
Download technical data sheet (PDF)