Thanks very much. I have found out on the net that toughened glass
doesn't sound too good as if it does break your left with a hole. I
have emailed Pilkington in New Zealand about their Optilam and
LamGuard glass and will remember to check about the edges.
Cheers,
asdex

Rich Hampel wrote:
Any local glass specialty supply will be able to supply and cut the
laminated glass you need. There is a special 'problem' with laminated
glass when used in the marine environment ...... the laminate in the
middle of the 'sandwich' will eventually discolor and separate from the
glass. To prevent this you MUST seal the edges of the glass with an
epoxy, etc. so that the caulk you use does not eventually react with
the center laminate. Talk to your glass supplier about what they use
to seal the edges.