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Our High-strength PA66 GF25 Compound is the flagship product of Shuangming Plastic, a professional China-based manufacturer of polyamide materials. This advanced 25% Glass Fiber Reinforced PA66 material adopts a sophisticated synergistic reinforcement technology, combining glass fibers for core mechanical strength with mineral fillers like wollastonite to boost stiffness and suppress molding warpage. In the polymer matrix, glass fibers act as the primary load-bearing skeleton, ensuring excellent impact resistance and structural toughness, while mineral fillers effectively reduce anisotropic shrinkage during processing. The Low-temperature toughened PA66 GF25 variant of this compound has passed professional testing, boasting a tensile strength of ≥85MPa and a flexural strength of ≥130MPa, capable of withstanding long-term mechanical stress. With minimal molding warpage, exceptional dimensional stability and a smooth surface finish, this PA66GF25 Polyamide Granules is engineered for manufacturing high-precision, complex-shaped and large thin-walled structural components, perfectly meeting modern industrial demands for lightweight design and precision molding.


The composite reinforcement system delivers outstanding tensile, flexural and impact strength, while effectively minimizing warpage and ensuring consistent dimensional accuracy of finished parts, eliminating shape deviation in high-precision production.
The material features an excellent surface flatness and a well-balanced overall performance profile, avoiding trade-offs between strength and processability for versatile application scenarios.
The low-temperature toughened version maintains stable mechanical properties under harsh conditions, suitable for parts requiring long-term stress resistance in complex working environments.
Excellent Electrical Insulation: Our Polyamide 66 25% glass fiber granules feature high volume resistivity and strong breakdown voltage resistance, making it an ideal choice for electrical and electronic component manufacturing.
Superb Thermal & Chemical Resistance: The material has a long-term service temperature of 120-150℃ and good corrosion resistance to acid, alkali and oil, adapting to various complex industrial working environments.
Smooth Processing Performance: It has a stable melt flow index and strong compatibility with mainstream processing equipment such as injection molding machines and extruders. Problems like melt fracture and material shortage are rarely seen during production, enabling efficient manufacturing of delicate parts.
Broad Compatibility: The granules are suitable for both injection molding and extrusion processes, meeting the production needs of different types of structural parts.




| StandardReference | TestItem | Unit | StandardValue | TestValue |
|---|---|---|---|---|
| GB/T 23615.1-2009 | Density | g/cm³ | 1.3±0.05 | 1.28-1.35 |
| Linear Expansion Coefficient | K⁻¹ | (2.3-3.5)×10⁻⁵ | (2.3-3.5)×10⁻⁵ | |
| Vicat Softening Temperature | °C | ≥230 | ≥233 | |
| Melting Point | °C | ≥240 | ≥240 | |
| Pin Stress Cracking Test | - | No cracks at holes | No visible cracks | |
| Shore Hardness | - | 80±5 | 80-85 | |
| Impact Strength (Unnotched) | kJ/m² | ≥35 | ≥38 | |
| Tensile Strength (Longitudinal) | MPa | ≥80 | ≥82 | |
| Elastic Modulus | MPa | ≥4500 | ≥4550 | |
| Elongation at Break | % | ≥2.5 | ≥2.6 | |
| Tensile Strength (Transverse) | MPa | ≥70 | ≥75 | |
| High-Temp Tensile Strength (Transverse) | MPa | ≥45 | ≥48 | |
| Low-Temp Tensile Strength (Transverse) | MPa | ≥80 | ≥85 | |
| Water-Resistant Tensile Strength (Transverse) | MPa | ≥35 | ≥38 | |
| Aging-Resistant Tensile Strength (Transverse) | MPa | ≥50 | ≥53 |
A: PA66GF25 has good resistance to most common chemicals including oils, greases, hydrocarbons and certain alcohols. However, it is susceptible to strong acids and oxidizing agents. We recommend conducting compatibility tests for specific chemical environments before full-scale use.
A: As a nylon material, it is hygroscopic. Moisture absorption may cause slight dimensional swelling and temporarily reduce stiffness and strength, while increasing impact toughness. For high-precision parts, proper drying before processing and dimensional change consideration in design are essential.
A: Yes. Our PA66 GF25 Extrusion Grade Granules and injection molding grade variants are both available, with stable processing performance for both extrusion and injection molding processes.
If you are interested in our High-strength PA66 GF25 Compound, OEM Color PA66+25%GF Pellets, Natural Color PA66 GF25 Pellets or other polyamide granule products, feel free to contact us for detailed product specifications, pricing and customization services.