LFT-G® PP LGF40YD for Automotive Water Pump Parts
Driving Performance: LFT-G® PP LGF40YD for Robust Automotive Water Pumps
Automotive water pumps are critical components in a vehicle's cooling system, constantly exposed to high temperatures, varying pressures, aggressive coolants, and mechanical stress from engine vibration. The demand for lightweight, cost-effective, yet highly durable materials in this application has led to the adoption of advanced polymers. Introducing LFT-G® PP LGF40YD, a specialized Long Glass Fiber Reinforced Polypropylene grade engineered to meet the stringent requirements of modern automotive water pump parts. By incorporating 40% long glass fibers within a high-quality polypropylene matrix, this composite material delivers exceptional mechanical properties, thermal stability, and chemical resistance, making it a superior choice for housings, impellers, and other vital water pump components.
The long fiber structure of LFT-G® PP LGF40YD creates a reinforced network that significantly improves tensile and flexural strength, crucial for withstanding internal pressures and bolt-up forces. Its high Heat Deflection Temperature (HDT) ensures dimensional integrity and structural performance are maintained even under the elevated temperatures of the engine bay and coolant. Furthermore, polypropylene inherently offers good resistance to common automotive coolants (like ethylene and propylene glycol mixtures) and corrosion inhibitors, a property greatly enhanced by the stable LGF40YD matrix. This combination of properties results in water pump parts that are not only lighter than traditional metal alternatives but also offer improved corrosion resistance, reduced noise and vibration, excellent fatigue life, and precise dimensional stability for reliable sealing – all contributing to enhanced vehicle performance and longevity. Choosing LFT-G® PP LGF40YD means selecting a material designed for the harsh realities of automotive thermal management systems, providing reliability and performance where it matters most.

Why LFT-G® PP LGF40YD Excels in Water Pumps
- High Strength & Stiffness under Operating Conditions
- Excellent Thermal Resistance (High HDT)
- Robust Chemical Resistance to Coolants
- Superior Dimensional Stability for Sealing
- Significant Weight Reduction vs. Metal
- Improved Corrosion and Fatigue Resistance
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Typical Technical Data for LFT-G® PP LGF40YD (Relevant to Automotive Applications)
|
Property |
LFT-G® PP LGF40YD |
Unit |
Test Method |
|---|---|---|---|
| Glass Fiber Content | 40±0.05 | % | / |
|
Tensile Strength (MPa) |
~140 | MPa | ISO 527 |
|
Flexural Strength (>MPa) |
180~200 | MPa | ISO 178 |
|
Flexural Modulus (>MPa) |
7300~10000 | MPa | ISO 178 |
| Notched Impact Strength (KJ/m²) | 32~35 | kJ/m² | ISO 179 |
|
Heat Deflection Temperature (1.8 MPa, ℃) |
~165 | ℃ | ISO 75 |
|
Coefficient of Linear Thermal Expansion (10⁻⁶/K) |
~0.15 | 10⁻⁶/K | ISO 11359 |
| Specific Gravity (g/cm³) | ~1.21 | g/cm³ | ISO 1183 |
Note: Data represents typical values for LFT-G® PP LGF40 and may vary based on specific grades like YD, processing conditions, and test piece geometry. These values are provided for general guidance; always consult the official technical datasheet for precise specifications of LFT-G® PP LGF40YD.
Request LFT-G® PP LGF40YD Technical Datasheet
Enhance Your Automotive Cooling Systems
Explore the potential of LFT-G® PP LGF40YD to deliver high-performance and reliable solutions for your automotive water pump and cooling components.
- Download Technical Datasheet
- Talk to Our Material Experts about Automotive Applications
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Contact us today to discuss your specific requirements: 008613950095707 | candyhu@lfrtplastic.com
