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Ryton® R-4

Technical Datasheet | Supplied by Syensqo

Ryton® R-4 by Syensqo is a polyphenylene sulfide natural grade reinforced with 40% glass fiber. It is suitable for injection molding application. It provides thermal- & dimensional- stability and chemical- & flame- resistance. It offers excellent processing characteristics, excellent mechanical, and electrical properties with outstanding chemical resistance even at elevated temperatures. It is recommended for automotive applications. Ryton® R-4 complies with RoHS, international sustainability and carbon certification PLUS (ISCC PLUS2) scheme of accreditation.

Ryton® R-4 Properties

Electrical Properties

Value & Unit

Test Condition

Test Method

Arc Resistance

125 s

ASTM D495

Comparative Tracking Index (CTI)

175 V

UL 746A

Volume Resistivity

1.0E+16 ohm-cm

(At 73°F)

ASTM D257

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Back Pressure

> 50 psi

Screw Speed

100 rpm

Mold Temperature

135 - 149 °C

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Ryton® R-4 Properties

Electrical Properties

Ryton® R-4 Processing Guidelines

Injection Molding Properties