LFT-G® HDPE LGF60 |High-Density Polyethylene
High-Stiffness Low-Warpage Long Glass Fiber Reinforced Thermoplastic
Product Introduction
LFT-G® HDPE LGF60 is a high-performance long glass fiber reinforced high-density polyethylene compound, engineered to deliver exceptional structural rigidity and outstanding dimensional stability while retaining the inherent lightweight advantage of polyethylene.
Featuring a 60% continuous long-glass-fiber reinforcement system, this material delivers a revolutionary improvement in mechanical strength, creep resistance, and warpage control compared to neat HDPE. It boasts ultra-low water absorption, excellent broad-spectrum chemical resistance, and reliable long-term performance in harsh, humid, and corrosive outdoor environments. This material maintains stable structural integrity under both long-term static loads and cyclic dynamic loads, with superior processing adaptability for high-volume industrial manufacturing. It is a cost-effective, high-performance, lightweight solution for heavy-load structural components, corrosion-resistant equipment, automotive engineering parts, outdoor durable facilities, and industrial applications that require both high stiffness and long-term environmental stability.
Key Material Strengths
- Ultra-high Specific Stiffness
Long glass fiber reinforcement delivers exceptional rigidity while reducing part weight, ideal for lightweight load-bearing engineering.
- Superior Dimensional Stability
Minimizes molding shrinkage and thermal warpage, maintaining consistent precision even under wide temperature fluctuations.
- Excellent Broad Chemical Resistance
Highly resistant to acids, alkalis, oils, solvents, and humidity, with stable performance in harsh corrosive environments.
- Outstanding Long-term Creep Resistance
Retains structural integrity under sustained loads, perfect for long-service-life fixed and heavy-load components.
- Excellent Processing Adaptability
Compatible with conventional injection and extrusion molding, supporting efficient mass production of complex part geometries.
Test Data Comparison
60% Glass Reinforced HDPE: Long Fiber vs. Short Fiber
LFT-G® HDPE LGF50 (60% Long Glass Fiber)
Specific Stiffness & Structural Rigidity
Long-term Creep Resistance
Dimensional Stability & Low Warpage
Impact Toughness & Ductility
Cyclic Fatigue Resistance
Note: Performance comparison based on ASTM standard laboratory test methods.
The chart above compares LFT‑G® HDPE LGF60 (60% long glass fiber reinforced HDPE) with a standard short glass fiber HDPE GF60. Across five key engineering metrics - specific stiffness and structural rigidity, long‑term creep resistance, dimensional stability and low warpage, impact toughness and ductility, and cyclic fatigue resistance - the long‑glass formulation consistently delivers superior results.
The long fiber architecture creates a 3D reinforcing network inside the polymer matrix, which directly translates into better load transfer, less deformation over time, and higher durability under repeated stress.
For applications in industrial containers, large‑format piping, automotive underbody shields, or structural components where HDPE is preferred, upgrading from short‑glass to LFT‑G® HDPE LGF60 offers a measurable performance lift without compromising processability. If your project requires balanced stiffness, impact performance, and long‑term reliability, this material comparison provides a clear reference point.
LFT-G® Injection Molding Manufacturing Process
| Parameter | Recommended Range | Key Notes for LFT-G® HDPE LGF60 |
| 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
Typical Engineering Applications
Automotive Lightweight Structural Components
Ideal for automotive battery pack frame brackets, chassis guard plates, seat skeletons, and interior load-bearing parts. It replaces traditional metal materials to achieve 30%-40% weight reduction, while maintaining stable structural rigidity under long-term vibration and dynamic loads.
Industrial Corrosion-Resistant Load-Bearing Parts
Widely used in chemical pipeline support brackets, logistics conveyor rollers, water treatment equipment structures, and valve housings. It maintains excellent mechanical properties in long-term contact with acids, alkalis, oils, and humid environments, with outstanding creep resistance under sustained loads.
Outdoor Heavy-Duty Engineering Accessories
Perfect for photovoltaic bracket connectors, outdoor sanitation equipment structures, garden machinery parts, and communication base station housing accessories. It has excellent UV resistance and weather resistance, maintaining dimensional stability and impact toughness in extremely high and low temperature outdoor environments for a long time.
Logistics & Packaging Equipment Components
Suitable for high-speed conveyor belt pulleys, automated packaging machine structural parts, pallet reinforcement brackets, and intelligent logistics robot shells. It features low noise, high wear resistance, and excellent dimensional stability, ensuring smooth operation under long-term high-frequency cyclic loads.
FAQ
Q: What is the continuous use temperature for LFT-G® HDPE GF60?
A: LFT-G® HDPE GF60 can be used continuously at temperatures up to 100°C to 110°C. The long glass fiber reinforcement improves heat deflection temperature significantly over unfilled HDPE, making it suitable for warm environments like underhood automotive parts or industrial enclosures.
Q: Does HDPE LGF60 require a special screw or mold for injection molding?
A: Standard injection molding equipment works well, but a low‑compression screw and large‑gate design are recommended to preserve fiber length. No special mold coating or heating is required.
Q: Can LFT-G® HDPE GF60 be recycled after the end of life?
A: Yes. As a thermoplastic composite, LFT-G® HDPE GF60 can be reprocessed and recycled. The long glass fibers may shorten during re‑grinding, but the material remains usable for less demanding applications, supporting circular economy goals.
 More Than Materials – Your Partner in Advanced ManufacturingTransform your designs with our next‑generation long‑glass‑fiber composites. Collaborate for uncompromised performance. |
Hot Tags: hdpe lgf60 reinforced engineering material, China, manufacturers, suppliers, factory, buy, customized
