Window profiles with the fibreglass-reinforced proStratoTec material are characterised by a particularly high degree of dimensional stability and rigidity. proStratoTec is extruded, similar to PVC, and if required also simultaneously with PVC. The material can nevertheless be recycled without any problems, separated perfectly using colour sorters and later fed back into the production process as recycled material.
Thanks to proStratoTec products' high level of twisting and torsion resistance, steel can usually be dispensed with, or the products are used as steel replacements themselves. The advantage – proStratoTec insulates much more effectively than steel and drastically improves a window's heat transfer coefficient. In addition, there is an enormous weight saving, which pays off in production, transport and installation, especially with ever larger window elements. There are also no other restrictions or changes in the production process. proStratoTec products can be processed on any production line without any special conversion.