Pigment Red 21
Color Makes Bright
What is Pigment Red 21?
Pigment Red 21 is a multi-purpose organic pigment with a yellowish, strong color strength, high covering and good dispersion. It is used in offset ink, water based ink, industrial coating.
Key Takeaways
- 01Best fit:Start with this grade when screening candidates for a color-matched trial in Offset Ink, Water Based Ink, and Industrial Coating.
- 02Why consider it:Use a sample comparison to assess shade development, handling, and overall fit against your current grade.
- 03Before scale-up:Confirm shade, dispersion, and fastness in your actual formulation and process conditions.
| Property | Detail |
|---|---|
| Colour Index | CI 12300 |
| CAS Number | 6410-26-0 |
| Appearance | Deep red powder |
| Lightfastness | ★★★★★★★★ |
| Heat Resistance | 160°C |
| Oil Absorption | ≤40 g/100g |
| Acid Fastness | ★★★★★ |
| Alkaline Fastness | ★★★★★ |
| Application | Offset InkWater Based InkIndustrial Coating |
Frequently Asked Questions
What is Pigment Red 21 used for?
Pigment Red 21 is used in Offset Ink, Water Based Ink, Industrial Coating. Its technical profile includes deep red powder appearance, heat resistance up to 160°C, and light fastness of 6/8.
What are the key specifications of Pigment Red 21?
Pigment Red 21 has Colour Index CI 12300 and CAS Number 6410-26-0. It appears as deep red powder, with heat resistance up to 160°C and oil absorption of ≤40 g/100g.
Is Pigment Red 21 suitable for offset ink?
Yes. Pigment Red 21 is listed for Offset Ink, Water Based Ink, Industrial Coating. Final suitability should be confirmed with a sample in the customer’s actual resin, solvent, binder, or processing conditions.
How should I evaluate Pigment Red 21 before bulk purchasing?
Request a sample of Pigment Red 21 and compare color strength, dispersion, shade, and fastness in the actual formulation against the current grade.
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