The new engineering materials powerhouse

by SpecialChem

Radel® R-7558

Technical Datasheet | Supplied by Syensqo

Radel® R-7558 by Syensqo is a detergent resistant, flame retardant polyphenylsulfone (PPSU) grade. Exhibits good processing stability, good chemical resistance, and good flow. Offers good toughness, low smoke emission and low toxicity. Is suitable for processing by injection molding. Radel® R-7558 is recommended for aircraft interior applications. Complies with the FAA FAR 25.853a, FAA FAR 25.853d and OSU 55/55 regulations.

Radel® R-7558 Properties

Flammability Properties

Value & Unit

Test Condition

Test Method

Total Heat Released

< 20 kW-min/m²

(At 2 min)

FAR 25 AppF

Vertical Burn, Drip Burn Time

No Drip

(60 sec)

FAR 25, AppF

Vertical Burn, Flame Length

< 7.62 cm

(60 sec)

FAR 25 AppF

Injection Properties

Value & Unit

Test Condition

Test Method

Front Temperature

366 - 382 °C

Nozzle Temperature

360 - 377 °C

Rear Temperature

354 - 371 °C

*The last time this product was checked, its availability could not be confirmed. If you have more information about its availability, please contact us.

Want to list or
update your products?

View the listing options

Want to report errors or
suggest improvements?

Send a Feedback

Products with the same brand name

View more (16)

Radel® R-7558

Radel® R-7558 Properties

Flammability Properties

Radel® R-7558 Processing Guidelines

Injection Properties