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by SpecialChem

STYRON™ 649D

STYRON® 649D is a crystal polystyrene (PS) grade. Offers excellent moldability, excellent clarity, toughness, good gloss in coextrusion, stiffness, flow and cost. Provides better color consistency, the ability to down-gauge and improved wall thickness distribution. Applications include disposable cutlery, housewares, compact disc, DVD jewel boxes and desk organizers.Is a FDA 21 CFR 177.1640 compliant grade.

STYRON™ 649D Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)

18.0 g/10 min

(200°C/5 Kg)

ASTM D 1238

Specific Gravity

1.04 -

ASTM D792

Linear Mold Shrinkage

4 - 8 cm/cm

(10 ^-3)

ASTM D955

Extrusion Properties

Value & Unit

Test Condition

Test Method

Zone 1 Temperature

177 - 193 °C

Zone 2 Temperature

182 - 204 °C

Zone 3 Temperature

188 - 210 °C

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STYRON™ 649D

STYRON™ 649D Properties

Physical Properties

STYRON™ 649D Processing Guidelines

Extrusion Properties