Characteristics of the PS


Good impact resistance.

Excellent electrical insulator.

Gas permeability.


Ease of adhesion.

Good dimensional stability, without internal


Resists well against dilute acids, alkalines.


Food grade.

PS adheres very easily 

PS lends itself well to decoration: printing; metal

coating; hot stamping; co-extrusion.

Highly gas permeable.


PS is a non-polar polymer, therefore it is an excellent insulator over a wide range of frequencies.

Its high volume resistivity makes PS highly



Low dielectric loss values (Tan Delta) prevent it

from being welded using high frequencies (HF).



Good impact resistance at low temperature


The presence of butadiene in HIPS (high impact

polystyrene) limits the spreading of cracks, but it

still remains sensitive to cracking with regards to



Good cold resistance down to - 40°C., continuously to -20°C.

Continuous usage temperature of 70°C

Glass transition temperature (Tg) of 90-100°C.

Fusion zone of @ 145°C.

Decomposition temperature of @ 320°C.


PS is resistant to dilute acids, aqueous saline solutions, and alkalines.

It is etched by oxidising or nitric acids.

It cracks under the action of chemical agents

such as: acetone, isopropanol, benzene, toluene,

chloroform, methylene chloride, trichlorethylene,

carbon tetrachloride, spirits.

PS swells and dissolves in many organic


PS is not very resistant to light (UV).


PS burns and gives off very dense, black smoke, it gives off CO, CO2, and H2O and flows, forming droplets.

It has HB classification under the UL 94 standard.


It exists in V0 and V2 grades.