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Crastin® S650FR BK851

Technical Datasheet | Supplied by Celanese

Crastin® S650FR BK851 by Celanese is an unreinforced, flame retardant polybutylene terephthalate (PBT) resin. Possesses mechanical and physical properties such as stiffness & toughness, heat-, friction-, chemical-, heat ageing- & wear resistance, excellent surface finishes and good colorability. Exhibits good melt stability and excellent electrical insulation characteristics. Good melt stability enables the recycling of properly handled production waste. Crastin® S650FR BK851 can be processed using injection molding. Applications include electronics, electrical, automotive, mechanical engineering, chemical, domestic appliances and sporting goods industry.

Crastin® S650FR BK851 Properties

Mechanical Properties

Value & Unit

Test Condition

Test Method

Nominal Tensile Strain at Break

7.2 %

(23°C)

ISO 527-2

Impact Strength, Notched Charpy

3.8 kJ/m²

(23°C)

ISO 179/1eA 2

Impact Strength, Notched Charpy

3.4 kJ/m²

(-30°C, 4.0 mm)

ISO 179/1eA

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Drying Temperature

120 °C

Moisture Content (Max)

< 0.04 %

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

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Crastin® S650FR BK851

Crastin® S650FR BK851 Properties

Mechanical Properties

Crastin® S650FR BK851 Processing Guidelines

Injection Molding Properties