by SpecialChem

RavaSafe® ZH-LSF 251

Technical Datasheet | Supplied by Ravago Manufacturing Americas

RavaSafe® ZH-LSF 251 by Ravago Manufacturing Americas is a colorable, halogen free and low smoke flame retardant thermoplastic polyurethane (TPU). It offers good mechanical properties, excellent processing and low water absorption. It is suitable for processing by extrusion.

It is designed for telecom, LV power cable and general purpose insulation & sheathing applications.
RavaSafe® ZH-LSF 251 complies with EN 50363 (TI7, TM7), VDE 0207 / 0250 (HM2, HM4, HI2) , BS 7655 (LTS1 , LTS2, LTS3, LTS4), IEC 60502 (ST8) and IEC 60092-360 (SHF1) specifications.

RavaSafe® ZH-LSF 251 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Density

1.51 g/cm³

(At 23°C)

ASTM D792, ISO 1183-1

Water Immersion Test

0.33 mg/cm²

(At 70°C, 7d)

IEC 60811-402

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

5.2 g/10 min

(At 150°C, 21.6 kg)

ISO 1133-b

Extrusion Properties

Value & Unit

Test Condition

Test Method

Zone 1 Temperature

130 °C

Zone 2 Temperature

140 °C

Zone 3 Temperature

150 °C

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RavaSafe® ZH-LSF 251

RavaSafe® ZH-LSF 251 Properties

Physical Properties

RavaSafe® ZH-LSF 251 Processing Guidelines

Extrusion Properties