Technical datasheet

Ixef® 1521

Supplied bySyensqo- Last Updated on Jun 28, 2025

Ixef® 1521 by Syensqo is a flame retardant polyarylamide (PAA or PARA) grade reinforced with 50% glass fiber. It is custom colorable and available in the form of pellets. It exhibits high strength, dimensional stability, very high stiffness and outstanding surface gloss and finish.
  • It offers excellent creep resistance and low moisture absorption.
  • It is suitable for processing by injection molding.
  • Recommended for aircraft, consumer goods, public transportation, electronics and environmental energy.
  • Ixef® 1521 complies with RoHS regulations.
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Ixef® 1521 properties

Electrical properties

PropertiesValue & unitTest conditionTest method
Comparative Tracking Index (CTI)0.0 Visible After LoginVisible After LoginVisible After Login
Dielectric Constant0.0 Visible After LoginVisible After LoginVisible After Login
Dielectric Strength0.0 Visible After LoginVisible After LoginVisible After Login
Dissipation Factor0.0 Visible After LoginVisible After LoginVisible After Login
Volume Resistivity0.0 Visible After LoginVisible After LoginVisible After Login

Flammability properties

PropertiesValue & unitTest conditionTest method
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Glow Wire Flammability Index (GWFI)0.0 Visible After LoginVisible After LoginVisible After Login
Glow Wire Flammability Index (GWFI)0.0 Visible After LoginVisible After LoginVisible After Login
Glow Wire Flammability Index (GWFI)0.0 Visible After LoginVisible After LoginVisible After Login
Glow Wire Ignition Temperature (GWIT)0.0 Visible After LoginVisible After LoginVisible After Login
Glow Wire Ignition Temperature (GWIT)0.0 Visible After LoginVisible After LoginVisible After Login
Glow Wire Ignition Temperature (GWIT)0.0 Visible After LoginVisible After LoginVisible After Login
Limiting Oxygen Index (LOI)0.0 Visible After LoginVisible After LoginVisible After Login

Mechanical properties

PropertiesValue & unitTest conditionTest method
Elongation at Break0.0 Visible After LoginVisible After LoginVisible After Login
Flexural Modulus0.0 Visible After LoginVisible After LoginVisible After Login
Flexural Strength0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Izod0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Unnotched Izod0.0 Visible After LoginVisible After LoginVisible After Login
Modulus of Elasticity0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Strength at Break0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Density0.0 Visible After LoginVisible After LoginVisible After Login
Linear Mold Shrinkage0.0 Visible After LoginVisible After LoginVisible After Login
Moisture Absorption at Equilibrium0.0 Visible After LoginVisible After LoginVisible After Login
Water Absorption0.0 Visible After LoginVisible After LoginVisible After Login

Thermal properties

PropertiesValue & unitTest conditionTest method
CTE, Linear, Parallel to Flow0.0 Visible After LoginVisible After LoginVisible After Login
Heat Deflection Temperature (HDT), Unannealed0.0 Visible After LoginVisible After LoginVisible After Login

Ixef® 1521 Processing Guidelines

Injection Molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
Drying TemperatureVisible After LoginVisible After Login
Drying TimeVisible After LoginVisible After Login
Front TemperatureVisible After LoginVisible After Login
Hot Runners TemperatureVisible After LoginVisible After Login
Melt TemperatureVisible After LoginVisible After Login
Mold TemperatureVisible After LoginVisible After Login
Rear TemperatureVisible After LoginVisible After Login

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