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EPS Styrofoam Beads
EPS Styrofoam Beads

Flame Retardant:C- Self Extinguishing Grade Regular Grade: A Standard Grade B High Expansion Grade D Fast Cycling Grade

1. Description

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.

2. Properties

Main Component: 92%~96% polystyrene

Appearance: Colorlessly transparent or opaque tiny beads

Density: about 1.04

Bulk density: about 0.6

3. EPS Classifay

4. Parameter Tale

GradeSpecificationBead Size(Diameter)Expandable Rate (one time)Foam DensityApplications
A-Standard Grade mmTimesg/l 
A-1031.00-1.6070-9011-14Block and low density products
A-1040.85-1.2565-8512-15Products more than 12mm thick
A-1050.70-1.0060-7513-17Medium density packaging products
A-1060.50-0.8055-7014-18Products more than 8mm thick
A-1070.40-0.6050-6515-18Products more than 6mm thick
A-1080.30-0.5035-5020-28Moulding and special products i.e. headpieces
       
GradeSpecificationBead Size(Diameter)Expandable Rate (one time)Foam DensityApplications
B-High Expansion Grade mmTimesg/l 
B-1031.00-1.6080-100180-20010-12.5Electronics packing, block, craftwork,box etc. Especially used for low density block
B-1040.85-1.2570-90160-18011-14
B-1050.70-1.0060-80130-15012.5-13
B-1060.50-0.8050-60100-13013-18
B-1070.40-0.6030-4060-9025-33
B-1080.30-0.5020-3540-7018-50
 
GradeSpecificationBead Size(Diameter)Expandable Rate (one time)Foam DensityApplications
C-Self Extinguishing Grade mmTimesg/l 
C-1021.40-2.0050-7014-20Block
C-1031.00-1.6045-6515-22Block and big packaging product
C-1040.85-1.2540-6515-25Block and big packaging product
C-1050.70-1.0040-6017-25Block and medium density packing product
C-1060.50-0.8030-5020-33High density block and special products
C-1070.40-0.6025-4025-40High density block and special products
C-1080.30-0.5020-4025-50High density block and special products
 
GradeSpecificationBead Size(Diameter)Expandable Rate (one time)Foam DensityApplications
D-Fast Cycling Grade mmTimesg/l 
D-1031.00-1.6060-7014-17Electronics packaging, block and Chinaware packing and high density products
D-1040.85-1.2550-6515-20
D-1050.70-1.0040-6017-25
D-1060.50-0.8035-5518-29
 
GradeSpecificationBead Size(Diameter)Expandable Rate (one time)Foam DensityApplications
AB-Special Grade mmTimesg/l 
AB-101More Than 2.0070-8012.5-14Low density block and float ball
AB-1021.40-2.0080-9011-12.5Low density block and float ball
108P0.25-0.420-4025-50Stuffing and cup
 
GradeSpecificationBead Size(Diameter)Expandable Rate (one time)Foam DensityApplications
H-Prevent Static GradeSurface Impedance 109-1012Nicety packing and antistatic packing
CA-COLORFUL GradeProduction According to Client Demand 
 

5. Applications

6. Packing

EPS Styrofoam Beads

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