The external dyed layer of acrylic glass is twice as hard as the PVC surface of white windows. It is highly scratch-resistant and is to a great extent resistant to the effects of the weather. The semi-matt, smooth and non-porous surface is insensitive to dust and dirt accumulating. There is no need for spalling, chipping and laborious subsequent coating. acrylcolor windows require virtually no maintenance and are extremely easy to care for.