ceramic and why it water spots

[Fit08]

So, since graphene/ceramic has the market on a rage it leaves me wondering why the "water spotting" issue has been heighten.

 

Water spots and etching are not new they have always been an enemy of a cars finish as are bird dropping. so, the quest begins to ease ones mind as to why coatings seem to more prone to these issues.

 

First thought,  many more "droplets of water" beads as we call them. We now then have raised the chances of spotting due to the sheer number "increasing the chances".

 

Second thought, both ceramic and graphene change the contact of these beads graphene even a grater angel. I wonder if this increased angle in angle when beads are boiled off (sun) the chemicals, calcium and such left behind are more concentrated it etches or marks quicker? Or, maybe this small droplet size combined with contact angle creates more concentrated heat thus more chance of spots?

 

While this gets into a chemists wheel house I'm sure, I think its a good topic to explore.