Automated testing of heat stability in plastics
Our Colortherm® brand features a range of synthetic red and yellow iron oxide pigments that provide much better thermal stability than comparable pigments on account of their unique production process.
To manufacture these red types, LANXESS uses its proprietary Laux process, which involves heating the pigments to temperatures as high as 800 °C. The process forces all traces of water that would make color shift more likely to occur out of the oxide crystal lattice. Consequently, the micronized LANXESS pigments exhibit no discernible color shift even at extremely high application temperatures. They can be processed at high temperatures well in excess of 300 °C with no problems at all.
Best-in-class heat stability of up to 300 °C is also ensured with our Colortherm® Yellow range. Colortherm® Yellow 5, 10, 20 and 30 are special pigments developed to ensure the formulation of yellow color shades at processing temperatures of up to 300 °C, e.g. for HD-PE, PS, ABS or PA.
Are you looking for more information about our heat stable iron oxide pigments for the plastic industry. Get in touch with us!