General-purpose GPPS color masterbatch
PS-MB Series
Standard GPPS color masterbatch with high clarity and vivid colors, suitable for packaging, disposables and daily consumer goods.
Product introduction
GPPS (general purpose polystyrene) offers excellent transparency and cost-effectiveness. Our GPPS color masterbatches use high-clarity pigments that preserve transparency while delivering vivid colors, suitable for packaging, disposables and optical applications.
Product features
- Good coloration at low addition (2%)
- Low haze, suitable for translucent applications
- Compatible with standard GPPS grades
- Quick color changeover
- Food contact grade available (FDA)
Typical applications
- Disposable tableware
- Optical discs/jewel cases
- Cosmetics packaging
- Display items
- Stationery
Physical properties
| Performance | Test method | Value |
|---|---|---|
| Carrier resin | — | GPPS(MI 4-8) |
| Pigment content | — | 25-50% |
| Melt index (200°C/5 kg) | ISO 1133 | 3-10 g/10 min |
| Density | ISO 1183 | 1.1-1.8 g/cm³ |
| Moisture content | ISO 15512 | < 0.08% |
Recommended processing conditions
| Parameter | Value |
|---|---|
| Drying | 70-80°C, 1-2 hours |
| Processing temperature | 180-230°C |
| Let-down ratio | 1-3% |
| Mold temperature | 40-60°C |
Coloring performance
| Performance | Test method | Value |
|---|---|---|
| Color difference Delta E (CIE Lab) | ISO 7724 | < 1.0 |
| Light fastness (blue wool scale) | ISO 105-B02 | 6-8 |
| Thermal stability | Internal method | 5 minutes at 220°C |
Other grades in the same polymer series
View GPPS general polystyrene color masterbatch all grades in this series (2 in total).
