What is PA6 LGF40 material?

Name: China PA6 LGF40 Toughened LFT-G Manufacturer
Brand: LFT-G
SKU: 305319651

LFT-G^® PA6 LGF40TA is a 40% long glass fiber-reinforced, impact-modified polyamide 6. The "TA" grade offers outstanding toughness while delivering high tensile strength. Long-fiber architecture provides superior creep resistance, fatigue endurance, and dimensional stability compared to short-fiber and lightweight engineering applications.

Core Strength

Superior Structural Rigidity

Outstanding Impact Toughness

Low warpage & low shrinkage

Lightweight high-performance solution

Long-fiber reinforcement ensures efficient load transfer.
Toughened system eliminates brittle failure.
Excellent heat aging and low warpage.
Enhanced fatigue resistance extends component service life.

Property Chart: PA6 LGF40 vs PA6 GF40

Comparison between LFT-G^® PA6 LGF40TA (long fiber, toughened) and standard PA6 + 40% short glass fiber. Long fiber significantly improves impact and strength retention.

Tensile strength (MPa), Flexural strength (MPa), Notched Izod impact (kJ/m²) – ISO/ASTM based.

Long-fiber advantage: Impact strength +140% higher vs short fiber GF40. Tensile strength +15% / Flexural strength +15%. Better creep resistance and reduced anisotropic shrinkage.

Technical Data Sheet

Property	Typical Value	Test Standard
Specific Gravity	1.43 g/cm³	ASTM D-792
Molding Shrinkage	0.10 - 0.30%	ASTM D-955
Tensile Strength	172 MPa	ISO 527
Tensile Modulus	12026 MPa	ISO 527
Tensile Elongation	1.7 - 2.5%	ISO 527
Flexural Strength	269 MPa	GB/T 9341
Flexural Modulus	9569 MPa	GB/T 9341
Notched Izod Impact	43 kJ/m²	ISO 180
Notched Charpy Impact	40 kJ/m²	ISO 179

Data represents LFT-G^® PA6-LGF40TA . Values typical for injection molding grade.

Processing Guidelines – Injection Molding

Processing Info.png

Pre-drying

Dry at 90-110°C for 3-4h with desiccant dryer.
Moisture <0.01% prevents hydrolysis.

Injection Parameters

Melt: 210-240°C
Mold: 40-60°C
Injection pressure: 80-115 MPa
Slow to moderate speed.

Tooling Design

Low-compression screw, full round runners, large gates.
L/D ratio 18:1 to 24:1, clamp force >100T.

Melt Temperature
210 – 240°C

Mold Temperature
40 – 60°C

Injection Pressure
80 – 115 MPa

Back Pressure
Low to moderate

Applications

LFT-G^®PA6 LGF40TA delivers metal replacement potential and mechanical robustness in demanding sectors:

car dashboard frame LFT-G

Automotive & EV

Structural brackets, battery housings, front-end modules, pedal supports. Reduces weight while maintaining crash resistance and stiffness.

FANS LFT-G

Industrial Machinery

Pump housings, fan blades, conveyor components, heavy-duty covers: excellent creep resistance and long-term dimensional stability.

electrical housing LFT-G

Power Tools & E-Mobility

Tool housings, gearboxes, e-bike frame inserts, levers. High impact strength and ergonomic lightweight design.

FAQ

Q: Why is PA6 LGF40 ideal for metal replacement?

A: LFT-G^®PA6 LGF40TA offers a high strength-to-weight ratio, excellent impact resistance, and superior fatigue life, making it a lightweight alternative to metals. Its long glass fiber reinforcement provides structural rigidity comparable to die-cast aluminum while reducing weight by up to 40%.

Q: PA6 LGF40 vs short fiber PA6 – what's the difference?

A: Compared to standard short fiber PA6, LFT-G^®PA6 LGF40TA delivers significantly higher impact strength, fatigue resistance, and creep performance. The long fiber 3D network absorbs energy better and reduces warpage. This makes it the preferred choice for dynamic and load-bearing applications.

Q: How to process PA6 LGF40 in injection molding?

A: Dry LFT-G^®PA6 LGF40TA at 90–110°C for 3–4 hours (moisture <0.01%) before processing. Set melt temperature 210–240°C, mold 40–60°C, and injection pressure 80–115 MPa with a low-compression screw. Proper drying and low-shear settings preserve fiber length and maximize mechanical performance.