Expandable Polystyrene Virgin EPS Resin Granules for Sale

E.P.S. (Expandable Poly Styrene) is a lightweight, rigid, plastic foam insulation material produced from solid particles of polystyrene. Expansion is achieved by virtue of small amounts of pentane gas dissolved into the polystyrene base material during production. The gas expands under the action of heat, applied as steam, to form perfectly closed cells of EPS. These cells occupy approximately 40 times the volume of the original polystyrene bead. The EPS beads are then molded into appropriate forms suited to their application. Products made from foamed polystyrene are nearly ubiquitous, for example packing materials, insulation, and foam drink cups.

Polystyrene (PS) granules: is composed of styrene monomer (SM) polymerization, can be synthesized by a variety of synthetic methods, the current industry mainly by bulk polymerization and suspension polymerization.
Polystyrene(PS) is a thermoplastic non-crystalline resin, mainly divided into general grade polystyrene (GPPS, commonly known as through benzene), impact grade polystyrene (HIPS, commonly known as benzene) and foam grade polystyrene (EPS) .
1. Polystyrene foam (Expanded Polystyrene referred to as EPS) is a light-weight polymer. It is the use of polystyrene resin into the blowing agent, while heating to soften, produce gas,forming a hard closed-cell structure foam Plastic.

2. Impact resistant polystyrene (HIPS) is an impact resistant polystyrene product produced by adding polybutyl rubber particles to polystyrene.

PS products use grade :  
1). High Impact Polystyrene(HIPS)
HIPS can be used to produce the shells of electrical household appliances, toys, automobile parts, daily necessities, etc. HIPS has excellent impact resistance, rigidity,electrical insulating property, corrosion resistance and dyeability.