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EDISTIR® SR 550

Technical Datasheet | Supplied by Versalis (Eni Group)

EDISTIR® SR 550 by Versalis Eni Group is a polystyrene high impact (HIPS) grade. Is suitable for food contact. Exhibits easy flow and good elasticity at low temperatures. Designed for injection molding process. EDISTIR® SR 550 is recommended for molding of large and complex parts with low thickness and high impact strength. Used for manufacturing of toys, housewares, technical items, egg trays, ice cream tubs, heels, caps, pill dispenser, cable reel, frames and containers for dairy products and frozen foods. Complies with ISO 2897-PS-I, M, 083-12-07-18, EU No 10/2011 and UL 94 HB Flame Rating (UL file E83071).

EDISTIR® SR 550 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Density, Bulk

0.65 g/m³

ISO 60

Water Absorption

< 0.1 %

(24 h / 23°C)

ISO 62

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

11 g/10 min

(200°C - 5 kg)

ISO 1133

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Melt Temperature

200 - 250 °C

Mold Temperature

20 - 60 °C

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EDISTIR® SR 550

EDISTIR® SR 550 Properties

Physical Properties

EDISTIR® SR 550 Processing Guidelines

Injection Molding Properties