Expandable polystyrene (EPS)
(EPS) is a product of styrene polymerization with the introduction of an expanding agent (gas) in the polymer composition. EPS is used in polymer processing into insulating panels and ready-to-use parts by expanding. The material has excellent heat-insulation and sound-proofing properties, high impact strength, vibration resistance, resistance to light, water repellency, dustproofness, and resistance to physical processing. The material is resistant to hydrolysis, oils, acids, solutions of alkalis and acids.
EPS is widely used in construction for production of panels for heat insulation
of walls and suspended ceilings (expanded plastic), as well as for production of thin-wall goods, fire-resistant industrial and food packaging.
Polystyrene is most commonly found in three forms. Rigid Polystyrene (PS), Expanded Polystyrene (EPS) and Extruded Polystyrene (XPS).
Grades Bead size per-expansion Density Foam Multiply Foam Density Typical Application
F50 1.6-1.9 11 60-75 10-20 Insulation,big packing ,flame retardant
F100 1.2-1.6 13 47-65 14-22 Insulation,big packing ,flame retardant
F150 1.0-1.2 14 42-60 16-30 Insulation,big packing ,flame retardant
F250 0.73-1.0 15 35-55 20-35 Medium density,packing,flame retardant
F350 0.5-0.73 16 28-50 22-40 High density,special use,flame retardant
F200 0.9-1.3 13-20 packing product,insulation application,flame retardant
F300 0.7-0.9 14-20 Small parts and thin wall with good surface finish
F400 0.4-0.7 18 packing product,insulation application
R200 0.9-1.4 13-25 Food contact,insulation application
R300 0.7-0.9 13-25 Food contact,insulation application
R400 0.4-0.7 18 Food contact,insulation application
F101 1.2-1.8 12-20 packaging product, insulation application
F105 1.2-1.8 12-20 packaging product, insulation application
F201 0.9-1.3 13-20 packaging product, insulation application
F205 0.9-1.3 13-18 packaging product for food contact
F305 0.7-1 16-22 packaging product for food contact
F405 0.4-0.7 Above 20 cases and packaging product