UPVC, plastics, polymer materials; ancient Greek plastikos = “capable of being formed” 
Materials that consist of synthetically produced polymers or contain (natural) polymers produced by the conversion of natural substances. […]
Source: Brockhaus.de

UPVC is the Finstral material par excellence. Hard uPVC has been at the heart of all Finstral windows for fifty years now, because it provides excellent insulation, can easily be welded for optimum impermeability, is extremely durable and is 100 percent recyclable. UPVC gives superb weather resistance on the outside, while on the room side it is easy to maintain and use – and offers numerous design possibilities both inside and out. The embossed and satin-finished surfaces, only available from Finstral, are particularly special: instead of films being glued on, the textures are directly embossed into the material. This hardens and compacts the surface and makes it more dirt-resistant. From the mixing of the uPVC granulate and extrusion of the solid-coloured uPVC profiles to the high-quality surface finishing, Finstral undertakes every step of the process and can thus guarantee fully consistent quality.