422FC is one of the TPC Performance expandable polystyrene products range. It is a free flowing expandable polystyrene grade, consisting of spherical polystyrene beads containing pentane as the expansion agent. Expandable polystyrene (EPS) is normally expanded to achieve the low densities required for final step expansion. The typical density of this grade is around 25 kg/m3, but other densities are possible depending on applications and equipments.422FC is especially fast cycling and waterproof formulated to achieve low density foam without lumps during pre expansion. This grade is not fire retardant, so it is not suitable for building applications.

Applications:
High Density Block, Shape Molding .Because of its small bead size, 422FC is also used for
contour moldings with a wall thickness of less than 10 mm. Molding with greater wall
thicknesses permit short cooling periods. Properly processed EPS foam packaging made
from 422FC provides good mould filling properties and high mechanical strength. It is not
hygroscopic, and it does not become friable in low temperatures. Molded EPS packaging
parts have to act as shock absorbers and cushion their content against blows from outside,
i.e. they have to absorb the energy released in an impact. The mainly closed cell structure of
molded foam parts made from 422FC absorbs the impact stress as “deformation work”. In
this process the air enclosed in the cells is first compressed, while bigger impact forces may
also deform or crack the cell walls.

Features:
Speed and ease of roof execution, Save on plaster, dirt and hardware, Stable against
earthquakes, Easy shipping, Being light, Resistant to compression and impact, High speed
implementation and cost reduction, It is a good insulator because it has low polarity, It has
good resistance against water and other solvents.