It takes quite a wallop unless it's hit by a pointed object. On the other
hand, my Triumph Spitfire side window exploded when a cold front went thru.
The top arrangement meant that it was continually pressed outward which may
have contributed.

Any scratch is disastrous!

Roger

http://home.earthlink.net/~derbyrm

"Nigel" wrote in message
...
I need to buy a new deck hatch. The choice seems to be either a Lewmar 60
or a Houdini super 50 foredeck hatch. They are both the same size (they're
both the same size) The Lewmar has Perspex (12mm I think) and the Houdini
6mm toughen glass. Houdini are a lot cheaper and I quite like the idea of
toughened glass, but is toughened glass likely to shatter into little
squares if it's walloped by a clew or similar object