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Plastics & Elastomers
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Plastics & Elastomers
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Stanyl® HFX31S

Technical Datasheet | Supplied by DSM
Stanyl® HFX31S by DSM is a halogen-free, red phosphorous-free polyamide (PA 4-6) grade reinforced with 20% glass fiber. Exhibits high flow. Offers superior heat resistance, design stiffness, wear and friction. It is suitable for processing by injection molding. Stanyl® HFX31S is recommended for reflow connectors, USB-C connectors in electronics applications.
Product Type
PA (Polyamide, Nylon) > PA 4-6 (Nylon 4-6)
Product Status
Geographical Availability
Central and Eastern Europe, Western Europe
Applications/ Recommended for
  • Electrical markets > Connectors
  • Injection molding - thermoplastics
Key Features
  • Phosphorous-Free
  • Stiffness, Good
  • Wear resistance, Good
  • Heat Resistance, High
  • Flow, High
  • Filled, Glass Fiber
  • Halogen Free

Stanyl® HFX31S Properties

Thermal Properties

Value & Unit
Test Condition
Test Method
Melting Point
295 °C
(10°C/min, dry)
ISO 11357-1/-3
UL RTI, Electrical
120 °C
(0.2 mm)
UL 746B
Deflection Temperature at 1.8 MPa (264 psi)
285 °C
( )
ISO 75-1/-2

Stanyl® HFX31S Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Drying Temperature
80 °C
Drying Time
4 - 8 hr
Dew Point
-30 - -40 °C

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