Nederlands 
Why does the colour differ per thickness?
The colour is in the glass itself. The thicker the glass, the more colour the light passes through and the deeper the tint. A 10 mm grey panel is therefore darker than a 4 mm one.
The colour is in the glass itself. The thicker the glass, the more colour the light passes through and the deeper the tint. A 10 mm grey panel is therefore darker than a 4 mm one.