New panes from recycled car windows for the Audi Q4 e-tron

In the next recycling step after Reiling has processed the glass recyclate and removed all the waste materials it can, Saint-Gobain Glass turns it into plate glass on its float line in Herzogenrath, Germany. That means roughly 3 x 6 meter (10 x 20 feet) rectangles, from which the affiliated company Saint-Gobain Sekurit makes automotive glazing in a subsequent process. One requirement for the final base glass product: the purest and most homogeneous glass recyclate possible.


Along with the shards, Saint-Gobain also mixes the recyclate with basic glass components that do not come from automotive sources, like quartz sand, sodium carbonate, and chalk, at a ratio of 30-50 percent. “For us, this cycle of making new car windows out of defective ones is an important step toward producing automotive glass in a way that conserves resources and energy,” says Dr. Markus Obdenbusch, production manager in charge of the Saint-Gobain float at the Herzogenrath site. 

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