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Plastics & Elastomers
The material selection platform
Plastics & Elastomers
by SpecialChem
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Technical Datasheet | Supplied by Dioki
OKIROL® E- 4 is an expandable polystyrene (EPS) grade by Dioki, contains pentane as a blowing agent. OKIROL® E- 4 is suitable for processing by pre-expansion, aging & molding and designed for molded parts. Used in manufacture of general and specific purposed low to medium density blocks, panels and shapes. Complies with WEEE, RoHS and European Directive 2002/72/EC & 94/62/EC.
Product Type
PS or GPPS (Polystyrene) > EPS
Physical Form
Beads, Spherical

OKIROL® E- 4 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Density, Bulk
0.610 g/cm3
( )
Bead Size
1.0 - 1.6 mm
( )
ISO 2591/1
Bead Size Range
0.8 - 1.6 mm
ISO 2591/1

OKIROL® E- 4 Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Aging Time
12 - 24 hrs
Molding Steam Pressure
0.5 - 0.9 bar
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