General-purpose PBT color masterbatch
PBT-MB Series
Standard PBT color masterbatch with high thermal stability for PBT processing temperatures (250-270°C), suitable for electronic connectors and appliance parts.
Product introduction
This PBT color masterbatch is optimized for PBT processing temperatures (250-270°C), providing excellent thermal stability, no degradation and good electrical property retention, suitable for electronic connectors and appliance parts.
Product features
- Heat resistant (up to 250°C)
- Excellent chemical stability
- Good dimensional stability
- Electrical insulation performance maintained
- Suitable for precision injection molding
Typical applications
- Automotive connectors
- Relay bases
- Coil bobbins
- Switch parts
- Industrial gears
Physical properties
| Performance | Test method | Value |
|---|---|---|
| Carrier resin | — | PBT(MI 10-20) |
| Pigment content | — | 20-50% |
| Melt index (250°C/2.16 kg) | ISO 1133 | 10-25 g/10 min |
| Density | ISO 1183 | 1.3-2.0 g/cm³ |
| Moisture content | ISO 15512 | < 0.04% |
Recommended processing conditions
| Parameter | Value |
|---|---|
| Drying | 120°C, 3-4 hours |
| Processing temperature | 250-270°C |
| Let-down ratio | 2-4% |
| Mold temperature | 60-100°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 | 7-8 |
| Thermal stability | Internal method | 5 minutes at 270°C |
Other grades in the same polymer series
View PBT Polybutylene Terephthalate Color Masterbatch all grades in this series (2 in total).
