LFT‑G® PA12 LCF40 – Long Carbon Fiber Reinforced Nylon 12
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LFT‑G® PA12 LCF40 is a 40% long carbon fiber reinforced polyamide 12 compound that delivers outstanding strength, low moisture absorption, and excellent chemical resistance for demanding engineering applications. Manufactured through advanced pultrusion technology, the pellets contain continuous carbon fibers aligned along the length, ensuring maximum reinforcement in the final molded part.
LFT‑G® PA12 LCF40 compounds provide a reliable, high‑performance solution for metal replacement and lightweight structural components, making them ideal for automotive fluid systems, precision mechanical parts, and industrial equipment because they:
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Key Features



Typical Properties
| Property | Value | Unit | Test Standards |
|---|---|---|---|
| Density | ~1.28 | g/cm³ | ASTM D‑792 |
| Tensile Strength | ~180 | MPa | ISO 527 |
| Tensile Modulus | ~16500 | MPa | ISO 527 |
| Tensile Elongation | 0.6‑1.5% | / | ISO 527 |
| Flexural Modulus | ~14000 | MPa | ASTM D‑790 |
| Flexural Strength | ~220 | MPa | ASTM D‑790 |
| Notched Charpy Impact | ~40 | kJ/m² | ISO 179 |
| Heat Deflection Temp (1.8MPa) | ~165 | °C | ISO 75‑2 |
| Carbon Fiber Content | 40 | % | ‑ |
Download Complete LFT PA12 LCF40 Data Sheet PDF
Processing Technology for Long‑Fiber Thermoplastics
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LFT‑G® injection molding process is specifically designed for long‑fiber reinforced thermoplastics. The screw geometry uses a low‑shear conveying profile that minimizes fiber attrition during melting, preserving the continuous‑fiber network achieved in our pultruded pellets right through to the finished part. This standardized platform ensures consistent, repeatable performance across production sites with very low batch‑to‑batch variability.
Low‑shear melting reduces fiber breakage and promotes uniform dispersion, even in parts with intricate geometries. Precise melt temperature regulation and optimized backpressure maintain the three‑dimensional fiber architecture critical for high mechanical performance. Modular screw designs offer flexibility for different material viscosities and part requirements – from thin‑walled housings to robust metal‑replacement components. Key benefits include shorter cycle times, minimized distortion, and reduced post‑molding finishing, leading to lower total system cost without sacrificing mechanical properties. |
Operating Instructions for Injection Molding

| Parameter | Recommended Range | Key Notes for LFT‑G® PA12 LCF40 |
| Drying Temperature ① | 85 – 100 °C | Use a desiccant dryer to prevent moisture‑induced degradation |
| Drying Time ① | 2 – 4 hours | Ensure residual moisture <0.1% before molding |
| Melt Temperature (Nozzle) ③ | 240 – 270 °C | Avoid excessive residence time to prevent thermal degradation |
| Mold Temperature ② | 60 – 90 °C | Balances flowability and part crystallinity |
| 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
Typical Application Areas

Automotive Fluid & Fuel Systems
Replace metal in fuel line connectors, quick‑disconnect couplings, brake fluid reservoirs, and coolant valves. PA12 LCF40 offers outstanding resistance to gasoline, diesel, brake fluid, and long‑life coolants, while low moisture uptake prevents swelling and ensures leak‑free performance under the hood.
Precision Connectors & Sensor Housings
High‑pin‑count electrical connectors, position sensors, and pressure transmitter housings. The material's stable dielectric properties, low warpage, and excellent dimensional accuracy ensure reliable signal integrity and sealing even in high‑humidity and temperature‑cycling environments.


Sports & Outdoor Equipment
Ski binding bases, bike suspension links, climbing gear frames, and outdoor tool handles. PA12 LCF40 combines low weight with high impact toughness, surviving cold‑weather shocks and abrasive wear, while low moisture absorption prevents brittleness and maintains grip in rainy or snowy conditions.

Contact: Emily
Email: sale04@lfrtplastic.com
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