Name: China PP GF40 (LGF40%)Long Glass Fiber Manufacturer | LFT-G®
Brand: LFT-G
SKU: 303475956

LFT-G® Homo PP 40% Long Glass Fiber Structural Polymer

Standard short glass fiber pp compounds routinely fail under continuous cyclic stress due to fiber pull-out. Our advanced pultrusion technology preserves 10-12mm fiber lengths inside the pellet. Upon injection molding, these extended fibers intertwine to create an internal 3D structural mesh, making it the premier metal replacement solution for complex automotive and industrial assemblies.

LFT-G® Homo PP GF40 LGF40 High Rigidity Polymer

Core Advantages:

● Extreme Structural Rigidity: 8,500 MPa flexural modulus effortlessly replaces cast aluminum brackets.
● Outstanding Dynamic Fatigue: Continuous 3D fiber network prevents crack propagation under vibration.
● Aerospace-Grade Weight Savings: Low density of 1.22 g/cm³ enables massive weight reduction over metals.
● Zero Hydrolysis Concerns: Unlike Nylon, this hydrophobic composite maintains full strength in high humidity.

The Fatigue & Creep Frontier (Dynamic Load Survival)

Not all 40% glass filled plastics perform equally under sustained load. See why long fiber skeleton prevents structural failure.

Standard Short PP GF40
(The Competitor)

❌ Sustained Mechanical Loads:
- Polymer chains slip easily.
- Part undergoes rapid creep deformation.
- Dimensional Deviation: HIGH

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LFT-G® Homo PP LGF40
(Model: LFT-PP-GF40-NG04)

✅ Sustained Mechanical Loads:
- 10mm fiberglass network mechanically locks matrix.
- Near-zero creep expansion under stress.
- Dimensional Accuracy: <0.1%

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Typical Material Properties (NG04)

The following values are typical data for LFT-G^® PP-LGF40 (Homopolymer Grade) and are for reference only. Data is for Dry-As-Molded (DAM) state. Please contact us for the official Technical Data Sheet (TDS).

Mechanical Properties

Property	Test Method	Value (DAM)
Tensile Modulus	ISO 527	9,500 MPa
Tensile Strength	ISO 527	135 MPa
Flexural Modulus	ISO 178	8,500 MPa
Flexural Strength	ISO 178	190 MPa
Notched Izod Impact (23°C)	ISO 180/A	35-38 kJ/m²

Thermal & Physical Properties

Property	Test Method	Value
Density	ISO 1183	1.21 g/cm³
HDT (0.45 MPa)	ISO 75	150 °C
HDT (1.80 MPa)	ISO 75	159 °C
Mold Shrinkage	ISO 294-4	0.1 - 0.2 %

Download Complete LFT^® PP-LGF40 TDS (PDF)

Processing Information

The following values are standard processing recommendations. To protect the critical long glass fiber network from shearing and fiber attrition, always use a low-compression screw, back pressure under 50 psi, and large gating.

Parameter	Recommendation
Drying Temperature	80 - 90 °C
Drying Time	2 - 3 hours
Rear / Feed Zone (Zone ①)	190 - 210 °C
Center / Melt Zone (Zone ②)	210 - 250 °C
Front / Nozzle Temp (Zone ③)	220 - 240 °C
Mold Temperature	38 - 70 °C

Injection molding Process info for LFT-G Materials

Multi-Industry Application Cases

Automotive Front End Module PP LGF40 NG04

Automotive Front-End Modules

Vehicle front-ends and bumper carriers require maximum functional rigidity to support critical components under continuous highway vibration. LFT-G^® pp gf40 replaces die-cast metal sub-frames, delivering up to 45% weight reduction and exceptional impact absorption without passing crash safety thresholds.

Washing Machine Plastic Drum Bracket PP LGF

Washing Machine Structural Units

Perfectly optimized for washing machine plastic part manufacturing, such as outer tubs and drum lifters. The dense 40% long fiber skeleton guarantees outstanding dimensional stability and fatigue life under intense spin cycles, outperforming brittle short fiber nylons in wet environments.

Industrial Water Pump Housing PP GF40

Industrial Fluid Systems

Heavy-duty fluid equipment requires strict corrosion immunity and zero creep under pressure. This 40% glass fiber pp replaces cast iron housings, preventing fluid leakage and structural warpage while instantly lowering material costs and total component weight.

Frequently Asked Questions (FAQ)

Q: Why choose Homopolymer instead of Copolymer for PP GF40?

A: Homopolymer Polypropylene provides significantly higher crystallinity than Copolymer, resulting in superior tensile strength, absolute rigidity (~9.5 GPa modulus), and better heat resistance. Backed by the 3D continuous fiber skeleton, it overcomes the historical brittleness of homopolymers, delivering an ideal structural plastic part composite.

Q: How does PP GF40 compare to PA6 GF30 in metal replacement?

A: Nylon 6 absorbs water from ambient air, leading to a 50% drop in strength and dimensional deviation. LFT-G® PP LGF40 absorbs zero moisture, ensuring constant rigidity in wet environments. It is also 15-20% lighter and far more cost-effective.

Q: What is the main processing rule to preserve fiber length?

A: High screw shear shatters the 10mm fibers into standard short fibers. To avoid this, operators must drop back pressure under 50 psi, utilize low-compression screw designs, adjust injection speeds to slow-to-moderate, and expand gate diameters to a minimum of 3mm.