lightweight
density
which is less than half that of glass.
strong
strength
It also has good impact strength
higher than both glass and polystyrene
however
PMMA's impact strength is still significantly lower than polycarbonate and some
engineered polymers
ignites
PMMA ignites at 460 °C (860 °F)
and burns,
forming
carbon dioxide, water, carbon monoxide
and
low-molecular-weight
compounds,
including formaldehyde