Quote:
Originally Posted by AlanQS
Edit: Just checked. The atmosphere blocks 98.7% of all UV and clear glass blocks 90% of UVA - the villain of the piece. I still think the claims stretch the point just a bit.
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OT but...
The atmosphere blocks 98.7% of UV coming from space (enough to fry us to a crisp) and then the glass blocks 90% of
whats left
But car window glass only really blocks UVB, the one that gives you a Tan.
Low energy UVA still passes through to cause the ageing damage to plastics etc...
This water spots issue sounds a bit poor.
All the more reason to own a silver car that hides all these horrors!
