Oct 01: Covestro Japan Ltd. announces the adoption of Makroblend® UT235M as the substrate material for a large exterior part on the Lexus ES, now in series production. The component is manufactured by Toyoda Gosei using an IMC process.
The adoption of this PC blend for an IMC process is another leading example of “The Material Effect” – where together with its partners, Covestro bridges laboratory and industrial scale development for series production. It is a powerful combination of material science, process- and application development that enables breakthrough performance. IMC combines injection molding and coating in a single, integrated process. By eliminating conventional post-painting steps, IMC contributes to reducing CO2 emissions while delivering outstanding Class A surface quality. The exceptional surface quality enables a seamless visual integration with adjacent glass, creating a refined, premium exterior appearance.
Makroblend® UT235M is a PC blend commonly used in exterior applications where low linear thermal expansion and dimensional stability are important. For this application, the grade was selected to meet product requirements for exterior appearance, dimensional stability, and durability on the luggage panel. The grade is also compatible with the IMC coating system, supporting coating adhesion and the targeted surface finish in series production.
Looking Ahead
In the role of an IMC solution provider, Covestro collaborates across the value chain to advance adoption and scale up of in-mold coating in Japan. Local support covers the complete process from application development to daily technical assistance. IMC evaluation capabilities are installed at the Covestro Japan site to verify under near production conditions and enable timely decisions with partners. Covestro will continue supporting stakeholders to meet application requirements and sustain series performance, coordinating with global teams where appropriate. Leveraging its expertise and global network, it is not just what Covestro materials are – it is about what Covestro enables its business partners to achieve.
