PA66GF35

Product Definition: PA66 matrix + 35% alkali-free chopped glass fiber (by mass) silane-coupled, high-strength reinforced nylon, offering a balance between high strength and processability. Standard stock colors include natural beige and black. Custom grades are available, including halogen-free UL94-V0 flame-retardant, hydrolysis-resistant, low-temperature toughened, and low-fiber-float modified grades. Its rigidity, heat resistance, and creep resistance are superior to GF30 but lower than GF40, making it the primary material for heavy-duty precision structural components.

Product Details

Product Use Cases

应用

1. Automotive Industry (Core Applications)

Engine valve covers, intake manifolds, radiator water chambers, water pump housings, transmission structural brackets, small chassis suspension brackets, throttle body assemblies, fuel pump housings, and high-power automotive connector housings (oil-resistant, high-temperature-resistant, and hydrolysis-resistant).

2. High-Voltage Electronics and Electrical Equipment

Circuit breaker bases, high-power relay bases, internal load-bearing brackets for charging stations, motor coil frames, high-voltage terminal blocks, and insulated enclosures for variable frequency drives (flame-retardant V0-rated specialty material).

3. Power Tools & General Machinery

High-power angle grinder housings, impact drill gear sets, hydraulic pump valve bodies, heavy-duty bearing housings, industrial sprockets, small-to-medium precision transmission gears, and load-bearing housings for instruments and meters.

4. Other Industries

Load-bearing brackets for heavy-duty fitness equipment, small components for construction machinery, pressure-bearing valve bodies for bathroom fixtures, and transmission structural components for agricultural machinery.

 

Core Product Characteristics

·  High strength and low creep: 35% glass fiber reinforcement ensures minimal deformation under long-term pressure, making it suitable for parts subjected to prolonged heavy loads;

·  Excellent molding compatibility: Compared to GF40, it offers better flow properties and fewer free fibers, resulting in higher first-pass yield rates for complex deep-cavity and thick-walled large parts;

·  Comprehensive Modification Options: Hydrolysis-resistant grades for automotive cooling systems; V0 halogen-free flame retardant for high-voltage electrical applications; cold-resistant grades that do not crack at -35°C;

·  Precision and Low Shrinkage: Minimal dimensional change in high- and low-temperature environments, enabling controlled assembly tolerances for precision gears and snap-fit components.

 

Technical Specifications

·  Physical Properties: Density: 1.39–1.41 g/cm³; Melting Point: 258–262°C; Longitudinal Molding Shrinkage: 0.2%–0.3%, Transverse: 0.45%–0.6%; dimensional stability far exceeds that of GF30; Equilibrium Water Absorption: 0.6%–0.8%; resistant to warping and deformation under high temperature and humidity.

·  Mechanical Properties: Tensile strength: 185–210 MPa; flexural strength: 285–305 MPa; flexural modulus: 10,500–12,000 MPa; notched impact strength (simply supported beam): 9–13 kJ/m²; significantly enhanced rigidity, fatigue resistance, and creep resistance, making it a lightweight alternative to small aluminum and cast iron components.

·  Heat Resistance: Heat deflection temperature at 1.8 MPa: 248–255 °C; heat deflection temperature at 0.45 MPa: 260–268 °C; continuous long-term operating temperature: 115–135 °C; short-term peak temperature resistance: 180–200 °C; suitable for sustained high-temperature conditions in engine compartments.

·  Chemical & Electrical Resistance: Resistant to engine oil, gasoline, coolant, grease, and weak acids and alkalis; not resistant to concentrated strong acids; excellent insulation with CTI ≥ 550 V; all grades comply with RoHS and REACH environmental standards.

 

Product Images (Various Colors)

应用3

 

Processing Recommendations

·  Drying: Vacuum drying at 100–110°C for 4–6 hours, until moisture content is <0.12%, to eliminate silver streaks and air bubbles;

·  Barrel temperature: 270–290°C; nozzle temperature: 275–285°C;

·  Mold temperature: 90–110°C, to optimize surface finish, reduce fiber protrusion, and stabilize dimensional accuracy.

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