LFT-G® PA6 GF50 Long Glass Polyamide

LFT-G® PA6 GF50 Long Glass Polyamide

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Polyamide 6 with 50% long glass fiber reinforcement (LFT-G® PA6 LGF50) is a high-performance engineering plastic offering exceptional stiffness, superior impact strength, and excellent creep resistance. The long glass fibers significantly improve the mechanical properties of PA6 GF50 and make it an ideal material for demanding technical applications.
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PA6 LGF Compound
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Description
Technical Parameters

LFT-G® PA6 GF30 (PA6-HLGF50)

PA6-HLGF50 GF50

LFT-G®PA6 LGF50 delivers an optimal balance of strength, surface quality, and processability for precision-engineered applications. Manufactured through an advanced pultrusion process, these long pellets (6–12 mm) feature continuous glass fibers aligned along the pellet length. During injection molding, the fibers form a robust three-dimensional network that ensures consistent mechanical performance while offering enhanced flowability for complex geometries.

PA6 LGF50 Compounds from LFT-G provide a reliable, cost-effective solution for metal replacement and structural components, making them ideal for automotive, consumer electronics, and industrial sectors because they:

  • Superior surface finish with minimal fiber show-out
  • Enables thinner walls while maintaining rigidity and impact balance
  • Excellent creep resistance and dimensional stability under sustained load
  • Enhanced flowability for intricate molds and multi-cavity tools
  • Reliable performance across a wide temperature range

LFT-G® PA6 LGF50 Compounds are available in customized formulations to meet specific application requirements. They are engineered for high-efficiency injection molding, minimizing post-molding operations and delivering consistent part quality with reduced system costs.

 

Typical Properties

    Property Value Unit Test Standards
  Density 1.54 g/cm³
ASTM D-792
  Tensile Strength  230 MPa ISO 527
  Tensile Modulus 16988 MPa ISO 527
  Tensile Elongation 1.5-2.5% / ISO 527
  Flexural Modulus 13559 MPa
ASTM D-790
  Flexural Strength 337 Mpa ASTM D-790
 Charpy Notched Impact  45 kJ/m² ISO 179
  Heat Deflection Temp  208 °C
ISO 75-2
  Glass Fiber Content 50 % -

Download Complete LFT PA6 HLGF50 Data Sheet PDF

 

LFT-G®-Technology Injection Molding Process

 

LFT-G®-Technology Injection Molding Process

Our LFT-G® injection molding process uses a specialized screw and barrel design developed specifically for long‑fiber reinforced thermoplastics. A gentle conveying geometry preserves fiber length during plasticization, ensuring the continuous‑fiber architecture from our pultruded pellets is retained in the final part. This standardized process platform delivers globally consistent results with minimal lot‑to‑lot variation.

 

Low‑shear processing prevents fiber breakage and enables superior fiber distribution even in complex molds. Optimized melt temperature control and backpressure management maintain the three‑dimensional reinforcing network essential for high impact performance. Modular screw designs flexibly adapt to different viscosities and part geometries-from thin‑wall components to structural metal‑replacement applications. Benefits include faster cycle times, reduced warpage, and elimination of secondary finishing, lowering overall system costs without compromising mechanical performance.

Injection Molding Operating Guide

TPU GF50 Processing Info

Parameter Recommended Range Key Notes for PA6 LGF50
Drying Temperature ① 90 – 110 °C Use a desiccant/dry air dryer to avoid hydrolysis
Drying Time ① 3 – 4 hours Ensure uniform moisture removal before processing
Melt Temperature (Nozzle) ③ 210 – 240 °C Avoid overheating to preserve fiber integrity
Mold Temperature ② 40 – 60 °C Balances flowability and part dimensional stability
Injection Speed Slow to Moderate Minimize fiber breakage and internal shear

Critical Tips:

Screw: Low-compression screw to reduce fiber breakage

Gating: Generous gating for smooth material flow

Get the Guide Delivered

 

LFT-G® Key Applications

 

PA6 HLGF50 delivers the highest strength and stiffness in our long‑glass portfolio, engineered for components that endure sustained mechanical loads and elevated temperatures. It offers exceptional rigidity, superior creep resistance, and a high heat deflection temperature, making it the material of choice for demanding structural applications.

This high‑performance formulation enables direct metal replacement in chassis components, mounting brackets, and under‑hood housings. It provides excellent resistance to oils, fuels, and greases, ensuring long‑term reliability in harsh automotive and industrial environments.

Manufacturers benefit from significant weight savings without sacrificing structural integrity. The material supports thinner wall designs, part consolidation, and efficient injection molding, reducing assembly steps and overall system costs while delivering uncompromised performance.

PA6 GF50 Applications Automotive Chassis
Automotive chassis
PA6 GF50 Applications Automotive Bracket

Automotive bracket

PA6 GF50 Applications Pump Housing
Industrial Pump Housing

FAQ 

Q: Which applications benefit most from PP-LGF30FR?

A: This combo excels in scenarios requiring both safety and structural reliability: 1. New energy vehicle battery pack brackets; 2. Electrical equipment enclosures ; 3. Industrial control cabinet internal supports.

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Q: Can PP-LGF30FR be customized for specific color or fiber content requirements?

A: Yes. We offer two key customizations: 1. Color matching (per Pantone/RAL codes, suitable for brand-unified component production); 2. Fiber content adjustment (20%-60% LGF, tailored to balance cost, strength, and flame retardancy). All customized batches undergo the same performance testing as standard grades.

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Q: What's the key difference between PP-LGF30FR and general grade PP-LGF30?

A: General-grade PP-LGF30 offers long-fiber-reinforced strength/rigidity, but lacks flame retardancy. In contrast, PP-LGF30FR retains the reinforced performance of PP-LGF30, along with flame-retardant properties, making it suitable for fire-required industrial/electronics/automotive scenarios.

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