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Expandable Polystyrene

  • Company Name:Keysu Ind Co., Ltd.
  • Membership:Free member
  • Registration Date:2009. 07. 28
  • CountryRegion:Korea
  • City:Seoul
  • Contact:In-sik, Shin (Mr.)
  • Related Keywords:Polystyrene
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  • Place of Origin :Korea

Description

General

EPS (Expandable Polystyrene) is a white polystyrene bead with a blowing agent. and the expanded polystyrene foam is used for isolation board and packing material for shock-absorbing

LG EPS

LG Chem. produces mainly two types of EPS resin as general and flame retardant in the same process. The flame retardant type and normal type are distinguished by the recipes. The EPS plant has attained international recognition for own product's qualities with the acquisition of ISO 9001 certification.

EPS Composition
- Poly Styrene 92 ~ 94%
- Blowing Agent 5.5 ` 7%
- Residual Ethyl Benzene Max. 500 ppm
- Coating Agent 2000 ~ 4000 ppm
- Moisture Content Max. 0.7%
EPS General
- Appearance White Solid Beads
- Specific Gravity 1.04 Approximately
- Appearance Gravity 0.60 Approximately

LG EPS Grade and Applications

- General Purpose
B120 Large part packages, floats etc.
B160 Medium and large part packages, floats
B240 Medium and large part packages
B320 Small part package
 
- Flame Retardant
R120 Insulating board, large part package, floats
R160 Insulating board, medium and large part package
R240 Insulating board, small and medium part package
R320 Insulating board, small part package
 
Property of Expanded Product General Purpose Frame Retardant
Grade B120 B160 B240 B320 R120 R160 R240 R320
Particle Size(Ø, mm) 0.96-1.74 0.68-1.30 0.59-1.00 0.35-0.71 0.96-1.74 0.68-1.30 0.59-1.00 0.35-0.71
Recommendable Density g/L 15.0-20.0 15.0-20.0 15.0-25.0 17.0-30.0 13.0-17.0 14.0-20.0 15.0-25.0 17.0-30.0
lbs/ft3 0.93-1.25 0.93-1.25 0.93-1.55 1.05-1.86 0.81-1.05 0.87-1.05 0.93-1.55 1.05-1.86
Application Insulation Board                
Large Part Packing                
Medium Part Packing                
Small Part Size                
Cup                
Fruit Box                
Fish Box                
Floats                
Pad                
Civil Engineering                

Physical Properties of Molded Products

Properties Test Method Unit Density of the End Product (g/L)
DIN 12 15 20 30
Max. thermal conductivity 56-612 mW/m.k 41 39 36 34
Max. [permeability to stema 53-429 µg/m2.sec 400 300 200 100
Min. resistance to pressure (relative Cruihing 10%) 53-421 kPa 60 80 120 190
Min. flexual stress at break 53-423 kPa 140 200 280 400
Max. temperatures for less than 5% warping 53-424 °C 80 80 85 85

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  • Expandable Polystyrene

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Expandable Polystyrene

Expandable Polystyrene

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