
ALPEX Technologies GmbH
Automotive Class A Roof Surface
Automotive Carbon Roof with Class A Surface
Lightweighting remains a key driver in the automotive industry, balancing performance, sustainability, and design. Our innovation presents an automotive carbon fiber roof with a Class A surface finish, combining premium aesthetics with structural efficiency.
Using an advanced resin transfer molding (RTM) process and precision-engineered tooling, the carbon roof is manufactured in a single production step, ensuring excellent reproducibility and reduced cycle times. The Class A surface is achieved without extensive post-processing, minimizing material waste and enabling cost-efficient serial production.
Key benefits of this innovation include:
Significant weight savings compared to steel and aluminum roofs
Improved vehicle performance through a lower center of gravity
High-quality surface finish suitable for visible exterior applications
Industrial scalability, paving the way for mass-market lightweight solutions
By combining aerospace-grade composite expertise with automotive production requirements, this technology demonstrates how carbon fiber components can deliver both technical performance and design excellence. It provides a pathway for premium vehicles to adopt lightweight solutions without compromise on visual quality or manufacturing efficiency.
This innovation marks a crucial step toward large-scale adoption of carbon fiber in the automotive sector, supporting future mobility concepts that demand both high performance and sustainability.




