Technical datasheet

Crastin® SK602 BK851

Supplied byCelanese- Last Updated on May 19, 2026

Crastin® SK602 BK851 by Celanese is a lubricated polybutylene terephthalate (PBT) resin reinforced with 15% glass fiber. It has great surface finishes, good colorability, heat, friction, chemical, ageing, and wear resistance, among other mechanical and physical qualities. It has high electrical insulating properties and strong melt stability. It's strong melt stability makes it possible to recycle properly managed industrial waste. Injection molding can be used to process it. Electronics, electrical, automotive, mechanical engineering, chemical, home appliances, and the sporting goods industry are among the industries that Crastin® SK602 BK851 is used in.
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Crastin® SK602 BK851 properties

Flammability properties

PropertiesValue & unitTest conditionTest method
Burning Behavior0.0 Visible After LoginVisible After LoginVisible After Login

Mechanical properties

PropertiesValue & unitTest conditionTest method
Elongation at Break0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Charpy0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Izod0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Unnotched Charpy0.0 Visible After LoginVisible After LoginVisible After Login
Modulus of Elasticity0.0 Visible After LoginVisible After LoginVisible After Login
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Physical properties

PropertiesValue & unitTest conditionTest method
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Thermal properties

PropertiesValue & unitTest conditionTest method
Heat Deflection Temperature (HDT), Unannealed0.0 Visible After LoginVisible After LoginVisible After Login
Melting Point0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Electrical0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Electrical0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical with Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical with Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical without Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical without Impact0.0 Visible After LoginVisible After LoginVisible After Login

Crastin® SK602 BK851 Processing Guidelines

Injection Molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
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