Sol-gel derived ORMOCER (R) materials (organically modified ceramics) have been developed for the functionalization of glass. The adjusted coating systems can be applied in optical quality by conventional paint technologies. Good long-term adhesion, scratch and abrasion resistance, stability against weathering and resistance towards corrosive delamination are additional outstanding advantages of such coating systems. The ORMOCER (R) coatings can also carry additional functions. For example, the surface polarity of glass can be modified. Hydrophilic as well as extremely hydrophobic surfaces can be attained. The contact angles measured with water range between 10 degrees and 110 degrees. Furthermore, colouring of glass articles is possible with coatings containing chromophores.