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Thermocol
(Expanded Polystyrene)

Expanded Polystyrene (Thermocol) offers a
non hydroscopic, odorless, rigid, closed cell Expanded Polystyrene containing
98% by its volume still air entrapped in its cell and is the major reason for
its excellent insulation properties. Because of its closed cell structure,
it offers a remarkable resistance to unwanted heat, chill and moisture to
penetrate through it and also gives a rigid, structurally strong product to
withstand various kind of loads and vibrations. It does not decay or age with
the time and gives permanent life long insulation without regular
maintenance. Perfect, even and plain surface makes its suitable to opt it
for false roofing and easy to install, carry and plastering on it.
Available in rectangular slabs and semi-spherical pipe sections in all range of
sizes and thickness to suit every individual's requirement.
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Typical Properties:
| Density Range |
15-30 Kg/m |
| Thermal conductivity at 10 mean
temperature |
0.028-0.031 Kcalm/hr. m c |
| Compressive Strength |
0.8-1.6 Kg/cm |
| Cross breaking Strength |
1.4-2.0 Kg/cm |
| Tensile Strength |
3-6 kg/cm |
| Application Range |
-200 +80 C |
| Water absorption by % Volume for 7
days in water |
0.5% |
| Self ignition point |
300 C |
| Melting Range |
100 - 200 C |
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It is fully resistant to all concentrated acid expect (HNO3 and
H2SO4) but it is non resistant to aliphatic, hydrocarbons, Ketones and
chlorinated hydrocarbons and is affected by ultraviolet rays. It turns yellow
and ultimate become brittle if left permanently exposed to sun.
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