Name: Manufacturer PA12 LGF50 High Stiffness LFT-G Compound
Brand: LFT-G
SKU: 310329794

Lightweight Long Glass-Reinforced Polyamide 12 Composite

Low Temperature Toughness · Low Moisture Uptake · Hydrolysis Resistance

PA6 LGF30 Engineering Plastic Resin LFT-G

LFT-G^®PA12 LGF50 holds steady mechanical properties from subzero to moderate heat, with far less water absorption than PA6/PA66. It keeps precise dimensions in damp/wet environments and delivers great anti-fatigue & anti-creep performance under repeated loads.

This grade is suitable for automotive fluid parts, sports structures, industrial pipes, and precision electrical connectors. It withstands oil, fuel, salt mist, and industrial chemicals, and offers stable hydrolysis resistance for long-term liquid immersion. As a light, rust-free substitute for metal castings, it slashes part weight while maintaining tight tolerances and impact toughness for harsh outdoor & fluid working conditions.

🔹 Injection Molding 🔹 50% Glass Fiber 🔹 Customized color🔹 High Perfomance

Resin PA12 (Nylon 12)

Fiber Content 50% long glass

HDT @ 1.8 MPa ~210°C

Water Absorption (24 h)< 0.3%

Why PA12 LGF50 For Your Project?

Creep Deformation Comparison: Long Glass PA12-LGF50 VS Short Glass PA12-GF50 (80℃, 15MPa Static Load)

Superior Low-Temperature Toughness – Retains high impact resistance under subzero cold, avoiding brittle cracking for outdoor and cryogenic equipment.
Outstanding Hydrolysis Stability – Resists degradation during long-term water/liquid immersion, far outperforming PA6/PA66 in wet continuous-use scenarios.
Ultra-Low Water Absorption – Minimal moisture uptake eliminates swelling and dimensional shift even in high-humidity marine & plumbing environments.
Great Salt Spray & Corrosion Resistance – Immune to rust and chemical erosion, ideal for automotive fluid parts and coastal exposed assemblies.
Flexible Impact & Wear Resistance – Long glass fiber reinforcement balances rigidity and ductility, delivering long service life for dynamic moving structural parts.

Key Application Areas

LFT-G Cooling Fluid Parts

NEV Hydrogen & Cooling Fluid Parts

Hydrogen quick connectors, battery cooling valve bodies, fuel cell fluid manifolds. LFT-G^® PA12 LGF50 restrains hydrogen penetration and features long-term hydrolysis resistance. It won't swell after prolonged contact with coolants and hydrogen media, and retains excellent low-temperature impact toughness for vehicles operating in frigid climates.

Pneumatic Actuator Components

Mini Hydraulic & Pneumatic Actuator Components

Compact hydraulic valve blocks, pneumatic cylinder housings, miniature pump supports. Ultra-low water absorption keeps precise dimensions in high-humidity factory conditions. Long glass fiber reinforcement achieves lightweight structure with reliable anti-fatigue performance, serving as a direct lightweight substitute for small aluminum alloy hydraulic parts.

product-350-231

Marine & Outdoor Sports Structural Hardware

Marine pipeline fittings, ski binding brackets, diving gear frames, lightweight cycling fluid valves. The material maintains high ductility under subzero temperatures, withstands salt spray, seawater, and extreme weather, with no cracking or dimensional deformation during long-term outdoor service.

Medical Precision Fluid Fittings

Portable blood treatment modules, medical liquid transfer connectors, disinfection-resistant fluid sensor shells. Minimal moisture absorption stabilizes insulation and tight tolerances in humid medical environments. Balanced rigidity and toughness tolerate repeated assembly and disassembly, while resisting degradation from medical disinfectants.

Injection Molding – Quick Reference

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This injection molding quick reference sheet is specially formulated for LFT long fiber reinforced thermoplastic materials. All recommended parameters and equipment configurations focus on low-shear molding.

The metering screw with an 18:1–22:1 L/D ratio, large open nozzle and free-flow check valve greatly reduce fiber breakage. It can preserve complete fiber length and secure the mechanical strength of finished products.

Standardized pre-drying, stable melt temperature and high mold temperature help eliminate bubbles and floating fiber defects on parts. Please purge the barrel with PE or PP before shutdown to avoid material carbonization and nozzle clogging.

Pre‑drying: 3‑5 hrs @ 120‑130°C (desiccant dryer)
Melt Temperature: 310‑340°C
Mold Temperature: 120‑150°C
Injection Pressure: 80‑150 MPa
Screw L/D: 18:1‑22:1, metering type

Note: Use a large open nozzle and a free‑flow check valve to minimize fiber breakage. Purge with PE or PP before shutdown.

FAQ

Q: What are the key advantages of PA12 LGF50 over standard PA12 grades?

A: LFT-G^®PA12 LGF50 offers significantly higher stiffness, creep resistance, and dimensional stability compared to unreinforced or short‑fiber reinforced PA12. The 50% long glass fiber network provides superior load transfer and impact strength, making it suitable for structural applications where standard PA12 would lack rigidity.

Q: Is PA12 LGF50 suitable for metal replacement?

A: Yes. With high specific stiffness and excellent creep resistance, PA12 LGF50 serves as a lightweight alternative to die‑cast aluminum, brass, and steel in applications such as brackets, housings, and structural frames. It reduces system weight, simplifies assembly, and eliminates secondary machining operations.

Q: What processing considerations apply to PA12 LGF50?

A: Pre‑drying at 85‑100°C for 2‑4 hours is required. Melt temperature should be maintained between 240‑270°C, with mold temperature at 60‑90°C to ensure proper surface finish and minimize warpage. A metering screw with free‑flow check valve and large nozzle orifice is recommended to preserve fiber length and optimize mechanical properties.

LFT team