PA66GF20

PA66 matrix +20% alkali-free chopped glass fiber (by mass) silane-coupled modified general-purpose reinforced nylon; an entry-level, mainstream grade in the fiber-reinforced series, available in two standard stock colors: natural semi-translucent off-white and black. Customizable grades include UL94-V0 halogen-free flame retardant, heat-stable high-temperature resistant, cold-resistant toughened, and low-fiber-float modified grades. It strikes a balance between strength, toughness, molding flow, and production costs, making it the material of choice for general-purpose precision structures in the automotive and electronics industries.

Product Details

Product Use Cases

应用

1. Automotive Industry (Primary Applications)

Dashboard brackets, air conditioning housings, door panel reinforcement frames, in-vehicle connector housings, cooling fan blades, small structural components for oil pumps, and internal brackets for automotive headlights (oil-resistant and high-temperature-resistant).

2. Electronics and Appliances

Low-voltage circuit breaker bases, relay housings, terminal blocks, power coil frames, USB sockets, home appliance switch housings, and inverter insulation brackets (insulating and flame-retardant options available in V0 grade).

3. Power Tools & General Machinery

Internal gears for hand drills/grinders, small pump housings, precision small gears, bearing cages, instrument housings, small-to-medium-sized sprocket components.

4. Other Industries

Structural components for bathroom appliances, small brackets for fitness equipment, plastic parts for office equipment, wear-resistant parts for small agricultural machinery.

 

Core Product Features

·  Optimal cost-performance ratio: Moderate glass fiber content provides strength far exceeding that of unreinforced PA66, while priced lower than high-glass-fiber grades such as GF30/35/40, making it the top choice for reducing mass production costs;

·  Excellent molding flow: 20% glass fiber minimizes mold clogging and ensures smooth filling; complex thin-walled snap-fit parts and multi-cavity components are easy to injection mold, resulting in high yield rates;

·  Low fiber protrusion and superior appearance: Thanks to the coupling and coating process, the finished product has a smooth surface with minimal visible fibers, eliminating the need for sanding or finishing;

·  Full-range customization: Specialized grades can be produced on demand, including halogen-free V0 flame retardant, -35°C low-temperature toughened, high-temperature heat-stable, and hydrolysis-resistant grades.

 

Technical Specifications

·  Physical Properties: Density: 1.27–1.30 g/cm³; Melting Point: 258–263°C; Molding Shrinkage: Longitudinal 0.3%–0.5%, Transverse 0.7%–1.0%. Shrinkage is significantly lower than that of pure PA66, resulting in greatly improved dimensional stability; Water absorption at room temperature for 24 hours: 0.4%–0.6%; minimal deformation due to moisture absorption.

·  Mechanical Properties: Tensile strength: 135–145 MPa; flexural strength: 220–240 MPa; flexural modulus: 6,700–7,100 MPa; notched impact strength (simply supported beam): 8–11 kJ/m²; balances stiffness and toughness, resists brittle fracture, and is the preferred choice for medium-load structural components.

·  Heat Resistance: Heat deflection temperature at 1.8 MPa: 235–245 °C; heat deflection temperature at 0.45 MPa: 255–265 °C; continuous operating temperature range: 100–125 °C; short-term peak temperature resistance: 250 °C; suitable for long-term use in engine compartments and heat-generating electrical enclosures.

·  Chemical & Electrical Resistance: Resistant to engine oil, gasoline, grease, and weak acids and alkalis; not resistant to concentrated strong acids; excellent insulation properties and arc resistance; CTI (Flame Spread Index) ≥ 400 V; compliant with RoHS and REACH environmental standards; features inherent self-lubricating and wear-resistant properties.

 

Product Images (Various Colors)

应用2

 

Processing Recommendations

·  Drying: Dehumidifying drying at 85–105°C for 4–6 hours, until the raw material moisture content is <0.15%, to eliminate defects such as stringing and bubbles;

·  Barrel temperature: 260–290°C; nozzle temperature: 265–280°C;

·  Mold temperature: 80–100°C, to improve surface finish and optimize dimensional accuracy.

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