That's not right. Mylar is not the middle layer of safety glass. Tempered is
used in side and back glass, NOT windshields. Safety glass is used in
windsheilds so it helps absorb impact. I used to work in the glass industry.

"Brian D" wrote in message
news:zthxb.120989$Dw6.554305@attbi_s02...
Tempered safety glass. It breaks in long cracks instead of a zillion
little
pieces. This is OK because the windshield is made from two layers of
glass,
with a layer of mylar in between to hold the mess together when it breaks.
Side and rear windows are 'safety glass', which is the stuff that breaks
into a zillion little pieces, but have relatively rounded corners in the
breaks so that they are not as sharp.

Brian

--
My boat project: http://www.advantagecomposites.com/tongass


"WaIIy" wrote in message
...
On Thu, 27 Nov 2003 01:51:41 GMT, "Lew Hodgett"
wrote:



OTOH, laminated safety glass, while abandoned years ago for
automobiles,
would simply crack when hit.

What kind of glass do they use in windshields on the new cars?