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by SpecialChem

STYRON™ 685DL

STYRON® 685DL is a high heat crystal polystyrene (PS) grade. Offers toughness, gloss, stiffness, flow, cost, high tensile strength, blue tint and exhibits high heat resistance. Provides better color consistency, the ability to down-gauge and improved wall thickness distribution. Is suitable for processing by thermoforming, extrusion and injection molding. Applications include foamproducts like egg cartons, meat trays and clamshells, OPS and medical.Is a FDA 21 CFR 177.1640 compliant grade.

STYRON™ 685DL Properties

Physical Properties

Value & Unit

Test Condition

Test Method

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

1.5 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

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Nozzle Temperature

230 - 245 °C

Zone 1 Temperature

230 - 245 °C

Zone 2 Temperature

215 - 230 °C

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STYRON™ 685DL

STYRON™ 685DL Properties

Physical Properties

STYRON™ 685DL Processing Guidelines

Injection Molding Properties