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Plastics & Elastomers
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Plastics & Elastomers
by SpecialChem
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ARCEL® 640 Resin

Technical Datasheet | Supplied by NOVA Chemicals
ARCEL® 640 Resin is a water insoluble, white colored expandable polystyrene (EPS) grade composed of polyethylene and polystyrene polymers. It contains 9.2% pentane and 0.3% plasticizer. Is recyclable, biologically and chemically inert. Exhibits improved impact properties and has the smallest bead size of the ARCEL resin family of products. Is suitable for processing by foaming. ARCEL® 640 Resin by NOVA Chemicals is recommended for high density applications and well-suited for more intricate part designs.
Product Type
PS or GPPS (Polystyrene) > EPS
Physical Form

ARCEL® 640 Resin Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Particle Diameter
0.7 - 1.4 mm
( )
29.6 - 96.0 g/l
( )
Expansion Ratio
10 - 30 times
( )

ARCEL® 640 Resin Processing Guidelines

Foaming Properties

Value & Unit
Test Condition
Test Method
Pre-puff Density
24.8 g/l
Foam Density
29.6 g/l
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