Pigment Red 170 · Naphthol AS
Red organic pigment for inks, plastics and coatings.
Description
Organic pigment from Synthesia’s VERSAL® range. Review its properties, fastness and applications to select the grade for your formulation.
Technical properties
| Color Index | Pigment Red 170 |
|---|---|
| Colour Index number | 12475 |
| CAS | 2786-76-7 |
| Chemical class | Naphthol AS |
| Oil absorption | 63 ml/100 g |
| Density | 1.4 g/cm³ |
| Bulking volume | 4.7 l/kg |
| Stated shelf life | 48 months |
Main applications
- Decorative paints
- Industrial paints
- Powder coatings
- Polyolefins
- PP fibres
Side applications
- Automotive paints
Fastness
| Linseed oil | 5 |
|---|---|
| White spirit | 5 |
| DEHT | 5 |
| Xylene | 4–5 |
| Acetone | 4 |
| Butyl acetate | 4–5 |
| Ethanol | 4–5 |
| Water | 5 |
| HCl 2,5 % | 5 |
| NaOH 2,5 % | 5 |
| Light: full shade | 7–8 |
| Light: 1:1 | 7 |
| Light: 1:3 | 7 |
| Weathering: full shade | 4 |
| Weathering: 1:1 | 4 |
| Weathering: 1:3 | 3 |
| Overspray | 5 |
| Heat resistance | P 270 °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.
Packaging and supply
Contact Deltachem for packaging options, quantity, availability and supply terms for this product.
Official documentation
Synthesia technical data sheet · 01/10/2026 · English · 2 pages.
Download technical data sheet (PDF)