In article ,
Owain writes:

If you want to stop the glass breaking (or retain the broken pieces in
situ) then you have 4 choices:

1. Laminated glass
2. Wired glass

Wired glass doesn't help prevent glass breaking and does little
to hold it together if it does break with any force -- the wires
just snap along with the glass. It's mainly to help the glass
stay in place for long enough when it softens in a fire that a
fire door's 30 minute rating can be met.

3. Polycarbonate
4. Translucent fibreglass with embedded expanded metal lath.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]