is a synthetic material, made of crude oil. A liquid
is extruded from the oil. From this liquid a refinery will
make little balls (polystyrene). By injecting steam
into these little balls they expand and glue together (styropor).
are it's colour and weigth. Styropor is always white
and almost weigthless.
names: polystyrene, EPS, tempex, styropor.
is CFK-free (non-European
material might be toxic during baking, please check
before using this material).