LFT-G® Long Fiber Reinforced Polypropylene for Automotive Radiator Frames
Engineered for the Front End: Resilient PP LGF30 for Automotive Radiator Support
Positioned at the forefront of the vehicle's cooling system, the automotive radiator frame serves as a vital support structure within the demanding engine bay. It bears the weight of the radiator, cooling fans, and often integrates mounts for headlights and other frontal components. This structure must endure consistent heat exposure, mechanical vibrations, potential impacts, and various automotive fluids. **LFT-G® PP LGF30** provides a cutting-edge material solution for modern automotive radiator frames and front-end carriers. Through the strategic reinforcement of a high-quality polypropylene matrix with 30% continuous long glass fibers, LFT-G® PP LGF30 achieves a powerful combination of structural performance, thermal stability, and impact energy absorption. This grade is specifically formulated to maintain its rigidity and dimensional integrity under the engine compartment's elevated temperatures, preventing warping or deformation that could compromise component alignment. Its inherent strength and stiffness are essential for securely supporting the cooling module assembly and managing loads encountered during vehicle operation and minor frontal impacts. Compared to conventional materials, LFT-G® PP LGF30 contributes meaningfully to vehicle lightweighting, aiding in fuel efficiency. It also demonstrates reliable resistance to automotive coolants, oils, and environmental elements like road salt. The material's excellent processability in injection molding enables the consolidation of multiple functions into a single, complex component, streamlining manufacturing and reducing assembly complexity.
Key Benefits of LFT-G® PP LGF30 for Radiator Support Structures
- Elevated Temperature Performance: Specifically designed to retain key mechanical properties and structural integrity within the high-temperature environment of the engine bay.
- High Structural Rigidity: Provides dependable support for the radiator, fans, and adjacent components, ensuring proper alignment and function under various operating conditions.
- Impact Energy Management: Contributes to the vehicle's frontal crash performance by effectively absorbing and distributing impact forces.
- Vibration and Noise Dampening: Helps minimize the transmission of engine and road vibrations, contributing to reduced NVH (Noise, Vibration, and Harshness).
- Chemical Resilience: Resists degradation from typical engine compartment fluids such as coolants, oils, and road salts.
- Lightweight Advantage: Enables significant mass reduction compared to metallic alternatives, enhancing vehicle efficiency without sacrificing performance.
- Functional Integration: Facilitates complex, multi-functional designs that consolidate parts and simplify the front-end assembly process.
Selecting **LFT-G® PP LGF30** for your automotive radiator frames means choosing a material proven to perform in the challenging under-hood environment. Our specialized LFT PP grades empower automotive engineers to design lighter, stronger, and more durable front-end structures that meet the evolving demands of modern vehicle platforms. Explore the possibilities and partner with us to innovate the future of automotive cooling and front-end systems.
For more technical data, please refer to the specification below, or
LFT-G® PP LGF30 Technical Data Sheet for Automotive Radiator Frames
This document provides technical data for a 30% Long Glass Fiber reinforced Polypropylene (LFT-G® PP LGF30) material, specifically engineered for automotive radiator frame applications. This grade is designed to provide the necessary structural support, heat resistance, and durability for components operating in the challenging engine compartment environment. The data presented here is based on typical values obtained from international material suppliers and standards. Please refer to the specific datasheet of your program for precise LFT material values.
Mechanical Properties
| Property | Value | Unit | Test Standard |
|---|---|---|---|
| Tensile Strength | 110-150 | MPa | ISO 527-1 |
| Tensile Modulus | 4000-6000 | MPa | ISO 527-1 |
| Elongation at Break | 1.7-2.5 | % | ISO 527-1 |
| Flexural Strength | 150-180 | MPa | ISO 178 |
| Flexural Modulus | 3500-5500 | MPa | ISO 178 |
| Notched Izod Impact Strength (+23°C) | 40-60 | kJ/m² | ISO 180/1A |
| Notched Izod Impact Strength (-30°C) | 37-58 | kJ/m² | ISO 180/1A |
Thermal Properties
| Property | Value | Unit | Test Standard |
|---|---|---|---|
| Melting Temperature | 210-250 | °C | ISO 11357 |
|
Heat Deflection Temperature (HDT/A, 1.8 MPa) |
155-159 | °C | ISO 75-1 |
| Coefficient of Linear Thermal Expansion | 5-8 | x 10-5/K | ISO 11359 |
Other Properties
| Property | Value | Unit | Test Standard |
|---|---|---|---|
| Density | 1.11-1.13 | g/cm³ | ISO 1183 |
| Flammability (UL 94) | HB | - | UL 94 |
| Moisture Absorption (24 hours) | <0.05 | % | ISO 62 |
| Shrinkage Rate (Mold Shrinkage) | 0.7-1.2 | % | ASTM D-955 |
| Vibration Damping | Good | - | Internal Testing |
Chemical Resistance (Typical)
LFT-G® PP LGF30 exhibits good resistance to the following substances relevant to automotive engine compartment environments:
- Coolants (Glycol-based) - Good
- Engine Oils - Good
- Road Salts - Good
- Water and Humidity - Excellent
- Fuels (limited contact) - Fair to Good
Processing Information (Typical)
Recommended processing conditions for LFT-G® PP LGF30 for injection molding of automotive radiator frames:
- Melt Temperature: 210-250 °C
- Mold Temperature: 80-90 °C
- Injection Speed: Medium (optimized for fiber length retention and filling large parts)
- Holding Pressure: Optimized to minimize warpage and ensure structural integrity and dimensional stability under load and temperature
Notes and Supplementary Information:
Data Source: This data is compiled based on typical values for PP LGF30 from international material manufacturers and standards. Vibration damping is a typical performance characteristic of LGF composites. **LFT-G® PP LGF30 offers a powerful combination of high heat resistance, robust structural performance (including stiffness and impact resistance), good vibration damping, and chemical resistance, making it a highly suitable material for demanding automotive radiator frames. Its lightweight nature further contributes to overall vehicle efficiency and performance.** Please consult specific regulatory compliance documentation relevant to automotive cooling systems and front-end structures. For precise and specific data for your program, including performance under specific long-term thermal and chemical exposure conditions, please consult the datasheet provided by your material supplier.
Download Complete LFT Data Sheet PDF
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