How Glass Reacts with Water and Causes Surface Corrosion! That's Why Glass Should be Treated with a Hydrophobic coating.

Glass Components

• Chemical Make-up
  80% of glass manufactured for building purposes
  
  

  Material	W.T %
  Silica (SI)	73
  Sodium Oxide (Na)	14
  Calcium (Ca)	9
  Magnesium (Mg)	4