
The pigments used to color plastics should meet various precise technical requirements. Iron oxide-based inorganic and green chrome oxide of the COLORTHERM® line pigments meet such requirements, and therefore play an important role in this sector.
Inorganic pigments resistant to high temperature.
Considering the limited work time and the processing equipments’ relatively low cutting power, the pigments used for coloring plastics must have the following characteristics: - Excellent dispersion capacity;
- High thermal stability;
- Resistance to light and to bad weather conditions;
- Non-migration to the surface.
COLORTHERM® Line
This line includes iron oxide-based yellows, reds, browns and blacks and also the chrome oxide green:
Yellows | | Reds | | Black | |
| Iron oxide hydrates (III) with acicular particles. | | Iron oxides (III) with spherical particles. | | Iron oxide (II, III) with spherical particles. |
| Its use is suitable for PEAD and OS, for it features stability to temperatures up to 300ºC. | | | | |
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| | Black | | Brown | | Green |
| Mixed-stage Pigment (Fe, Mn)2 O3. | | Mixed-stage Pigment (Fe, Mn)2 O3. | | Chrome Oxide (III) (Cr2O3). |
| Ideal for use in plastic processing materials on high temperatures. (ABS and enginery plastics). | | Ideal for use in plastic processing materials on high temperatures. (ABS and enginery plastics). | | Ideal for use in plastic processing materials on high temperatures. (ABS and enginery plastics). |
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