The Ultimate Lightweight Structural Composite
When automotive and industrial engineers need to replace heavy die-cast metals without escalating production costs, LFT-G® LGF50-PP is the industry standard solution. Unlike conventional short-fiber polypropylene that suffers from severe creep under load, our 50% long glass fiber compound establishes a permanent 3D structural matrix. This delivers an exceptional 10,800 MPa flexural modulus while massively reducing part weight. Supported by our direct factory capabilities, we offer rapid global delivery, custom color matching, and free technical material analysis to guarantee a seamless transition for your manufacturing lines.
Typical Material Properties (LFT-G® LGF50-PP)
| Property | Standard | Value |
|---|---|---|
| Density | ISO 1183 | 1.32 g/cm³ |
| Tensile Strength | ISO 527 | 148 MPa |
| Tensile Modulus | ISO 527 | 11,700 MPa |
| Flexural Strength | ISO 178 | 210 MPa |
| Property | Standard | Value |
|---|---|---|
| Flexural Modulus | ISO 178 | 10,500 MPa |
| Charpy Notched Impact | ISO 179 | 48 kJ/m² |
| HDT (1.80 MPa) | ISO 75 | 159 °C |
| Mold Shrinkage | ISO 294-4 | 0.10 - 0.20 % |
Processing Guidelines for PP LGF Resin
Pre-drying
80–90°C / 2-4h
Ensure Surface Moisture Removal
Injection
Melt Temp: 210–250°C
Low Shear Processing
Tooling Settings
Mold Temp: 40–70°C
>3mm Sprue Gate for Fiber Retention
Why PP LGF50 And Not PP GF50?
What is PP LGF50?
The PP LGF50 material has become increasingly popular in the industry, especially for parts that require high durability and strength. LFT-G® PP LGF50 stands for the Polypropylene composite with Long Glass Fiber 50%. This means that the material is made up of 50% long glass fiber and 50% polypropylene,its length is 10-12mm. The long glass fibers are what give the material its strength and durability, while the polypropylene provides flexibility and resistance to heat and chemicals. And PP GF50 is mean that Polypropylene filled 50%short glass fiber reinforced Polypropylene composite,it's length is only less than 3mm.
Why long Fiber LFT PP have higher performance that PP GF?
During the cavity filling process, the molten PP is more fluid than the glass fibers, the temperature of the end far from the gate and the end of the mold is lower, the PP cools rapidly, but the glass fibers are coalesced by the constantly renewed melt and the content is increased. In addition, the glass fiber far from the gate undergoes more folding due to the growth of the process and the retention length decreases, and the glass fiber length is significantly impaired at the end near the gate due to the long holding time. The middle part has the longest glass fiber holding length, and this part of the glass fiber is highly oriented and has the strongest tensile strength under the action of the high speed flow of the melt. The longer, isotropic glass fibers are able to form a certain fiber skeleton in the PP polypropylene matrix to absorb the shear stresses from the outside, thus improving the mechanical properties of the LFT PP LGF material stress.
In addition, due to the development of polypropylene long fiber LFT modification technology in recent years, polypropylene has an absolute advantage in the development of the automotive industry.
Xiamen LFT-G® adopts LFT-Granules cutting process to prepare high melt flow rate PP injection molding pump special material, the product flexural modulus of 1600MPa or more, to meet the customer's design specifications and processing requirements, and has been produced on a large scale.
Engineered for High-Volume Structural Applications
Automotive Front-End & Door Modules
Lightweighting is critical in modern automotive engineering. By substituting heavy steel reinforcements with our LGF50-PP composite, Tier-1 manufacturers achieve up to a 30% weight reduction while maintaining strict crash safety standards and superior impact absorption capabilities.
Home Appliance Structural Drums
Washing machine tubs and heavy-duty appliance bases undergo constant high-RPM vibrational stress and thermal cycling. The robust 3D structural network of our long fiber polypropylene totally eliminates long-term creep fatigue and significantly reduces vibrational noise during operation.
Industrial Ventilation Fan Blades
Large-scale cooling tower impellers demand extreme dimensional stability to prevent unbalanced rotation at high speeds. With near-zero anisotropic shrinkage, PP LGF50 ensures flawlessly balanced aerodynamic blades that resist both severe weather exposure and mechanical distortion.
Request Technical Trial Sample & Quotation
Slash your production costs with the ultimate PP LGF50 metal replacement. Contact the LFT-G® manufacturing plant today for free technical analysis, customized color matching, and fast global sample delivery.
Request Technical Trial Sample (25KG)
Email Inquiry: Candyhu@lfrtplastic.com
WhatsApp Directly: +86 13950095707
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