Expanded Polystyrene Rib Blocks

As per chemical terms, it is a thermoplastic, viz styrene. Styrene is produced from benzene and ethylene, and polymerization is accomplished in the presence of catalysts. As small beads containing blowing agent.

Expanded polystyrene is a closed-cell cellular material with a very low weight and comparatively high standard. It is immune to water, moisture and most chemicals. It is physiologically harmless. Neutral in taste and odour, and hygienic and is not a nutrient for microorganisms.

Expanded polystyrene is produced in two grades namely regular and flame retardant grades. Moulded items made from flame retardant grade have excellent insulation properties because of its closed celled structure and for its low "K" value.