LFT-G^® PP GF40 – Heat Resistant Homopolymer Composite

LFT-G^® PP GF40 (Model: LFT-G^®PP-GF40-NG04AR) is an advanced, high-performance structural material. It features a premium homopolymer polypropylene matrix reinforced with 40% continuous fiberglass, specifically formulated with advanced heat stabilizers for prolonged high-temperature environments.

In engineering applications, standard glass pp compounds often experience severe thermal aging and mechanical degradation when exposed to continuous heat. Our proprietary pultrusion technology ensures that the long glass fiber (10-12mm) is thoroughly impregnated with the heat-resistant homopolymer resin. This creates an internal 3D structural skeleton within the final molded part.

The resulting composite delivers exceptional dimensional stability, high stiffness, and outstanding thermal endurance, making it the premier glass fiber pp solution for demanding automotive under-hood components and industrial heating systems.

Why Choose Heat Resistant Long Glass Fiber PP?

● Extreme Heat Deflection (HDT): The combination of a highly crystalline homopolymer matrix and 40% fiberglass significantly raises the heat deflection temperature, preventing part distortion under heavy loads at elevated temperatures.
● Thermal Aging Resistance: Specially formulated additives protect the polymer chains from oxidative degradation, ensuring long-term mechanical reliability even after continuous exposure to hot air or hot fluids.
● Superior Rigidity & Creep Resistance: Unlike short-fiber glass pp, the long glass fiber network locks the resin structure. This drastically reduces creep deformation, allowing the material to bear sustained mechanical stress without yielding.
● Metal Replacement Capability: Offers the structural strength of die-cast aluminum or zinc at a fraction of the weight, eliminating the need for costly secondary machining and anti-corrosion treatments.

Material Specifications: LFT-G^®PP-GF40-NG04AR

Property	Standard	Typical Value	Unit
Polymer Matrix	-	Homopolymer PP (Heat Resistant)	-
Fiber Content	ISO 3451	40% Long Fiber	%
Density	ISO 1183	1.21 - 1.23	g/cm³
Tensile Strength	ISO 527	130 - 135	MPa
Flexural Modulus	ISO 178	6800 - 7600	MPa
Heat Deflection Temp (1.8MPa)	ISO 75	156 - 160	°C

Download Heat Resistant LGF40 Data Sheet PDF

Target Applications: High-Temperature Environments

LFT-G^® PP-GF40-NG04AR is the material of choice for engineers looking to replace expensive PA66 (Nylon) or die-cast metals in heat-intensive applications.

Automotive Under-Hood

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Application: Engine covers & radiator end tanks.
Benefit: Withstands prolonged engine bay heat and resists automotive fluids without losing structural stiffness.

Electric Motor Housings

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Application: Industrial pump and motor casings.
Benefit: High HDT ensures the housing remains dimensionally stable despite the continuous heat generated by the motor coils.

Boiler & HVAC Components

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Application: Hot water system manifolds & valves.
Benefit: Homopolymer base provides excellent hydrolysis resistance in hot water environments, replacing heavy brass fittings.

Frequently Asked Questions (FAQ)

Q: What is the maximum temperature for glass fiber PP?

A: Standard glass pp generally begins to lose mechanical strength around 100°C - 120°C. However, our LFT-G^® Heat Resistant Homopolymer LGF40 features a Heat Deflection Temperature (HDT) of 155°C to 160°C. It is engineered to perform reliably in continuous service environments up to 130°C without structural failure.

Q: Is Homopolymer PP better than Copolymer for heat resistance?

A: Yes, absolutely. Homopolymer Polypropylene has a higher degree of crystallinity and a higher melting point compared to Copolymer PP. When extreme stiffness and high-temperature dimensional stability are your primary goals, a fiberglass reinforced Homopolymer matrix is the superior choice.

Q: Why use long glass fiber instead of short glass fiber for hot environments?

A: Heat causes polymers to expand and soften, leading to part deformation (creep). While short fiberglass provides basic reinforcement, the continuous 3D skeleton formed by long glass fiber mechanically locks the polymer chains. This drastically reduces thermal expansion and ensures the part maintains its shape and tight tolerances under heat.