Elephant

He has to stay in.

Elephants are peaceful. Usually. But zoo visitors are mostly children, who can provoke the animal without realising it.
Purely theoretically a grown bull, 4 metres in size and weighing 5 tonnes, could charge into the glass at a speed of 30 km/h. And SILATEC would withstand even that. With a large safety margin. Easily.

FACTS:

TYPE:
SILATEC Elephant 80/90

THICKNESS:
from 80 mm

WEIGHT:
from 179 kg/m2

DIMENSIONS:
dependent on the type of mounting
(2-sided, 3-sided, 4-sided)
[E.g.: with three-sided linear mounting - upper edge free – SILATEC Elephant 80/179 can, for example, have the following dimensions:
Width: 1.5 m, Height 2.5 m.]