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| Category | Property | Typical Value / Description |
|---|---|---|
| Physical Parameters | Density | 1.55–1.60 g/cm³ |
| Melting Point | 259–263°C | |
| Molding Shrinkage – Longitudinal | 0.18%–0.25% | |
| Molding Shrinkage – Transverse | 0.38%–0.50% | |
| Dimensional Stability | Lowest shrinkage among all glass-fiber-reinforced grades; virtually no warping or deformation in high- or low-temperature and humid environments | |
| Equilibrium Water Absorption | 0.55%–0.7% | |
| Dimensional Accuracy | Excellent dimensional accuracy | |
| Mechanical Properties | Tensile Strength | 235–260 MPa |
| Flexural Strength | 345–380 MPa | |
| Flexural Modulus | 14,500–17,000 MPa | |
| Notched Impact Strength (Simply Supported Beam) | 15–22 kJ/m² | |
| Mechanical Performance | Comparable to die-cast aluminum alloys; no creep or deformation under long-term continuous compression; weight reduction of 40%–55% | |
| Heat Resistance | Heat Deflection Temperature (1.8 MPa) | 260–270°C |
| Heat Deflection Temperature (0.45 MPa) | 272–280°C | |
| Continuous Long-Term Operating Temperature | 125–145°C | |
| Short-Term Peak Temperature Resistance | Up to 220°C | |
| Application Temperature Resistance | Ideal for high-temperature operating conditions in engine compartments | |
| Chemical Resistance & Environmental Compliance | Chemical Resistance | Resistant to engine oil, gasoline, antifreeze, hydraulic oil, and weak acids and alkalis |
| Strong Acid Resistance | Not resistant to concentrated strong acids | |
| Electrical Insulation | Excellent insulation properties | |
| CTI | ≥ 600 V | |
| Environmental Compliance | All grades comply with RoHS and REACH environmental certifications |
Automotive Industry (Primary Applications): Heavy-duty engine mounts, turbocharger housings, load-bearing transmission housings, structural frames for new energy battery packs, chassis and suspension reinforcements, high-power vehicle-mounted high-voltage connector bases, and heavy-duty water pump housings (oil-resistant, hydrolysis-resistant, and high-temperature-resistant). Finished photovoltaic mounting structures
High-Voltage Electrical & New Energy: Load-bearing bases for high-voltage circuit breakers, high-power internal brackets for charging stations, stator frames for large motors, small structural components for wind turbines, PV tracker brackets, high-voltage insulating partitions (made from V0 flame-retardant specialty materials).
Industrial Machinery & Heavy-Duty Power Tools: Housing assemblies for heavy-duty electric hammers and high-power industrial angle grinders; heavy-duty gearboxes; hydraulic pump and valve bodies; large bearing housings; industrial drive sprockets; heavy-duty transmission brackets for agricultural machinery; bases for automation equipment. Plastic components for tools
Other Applications: Main load-bearing frames for heavy-duty fitness equipment; high-end bicycle cranks and pedals; small load-bearing components for construction machinery; large-scale high-pressure valve bodies for bathroom fixtures; heavy-duty airframe structural components for drones.
Highest rigidity in the entire series: 50% glass-fiber-reinforced dense skeleton—the top choice for heavy-duty load-bearing applications, with fatigue and creep resistance superior to all GF20/30/35/40 grades;
Ultimate dimensional stability: Lowest shrinkage rate among all-glass-fiber PA66 grades, controllable tolerances for precision heavy-duty components, and no deformation under thermal cycling;
The go-to solution for metal lightweighting: Replaces aluminum and zinc die-cast parts, offering higher injection molding efficiency, lower production costs, and significant weight reduction;
Customizable with various modifications: Hydrolysis-resistant grades for automotive water system components, V0 flame-retardant grades for high-voltage power distribution, and -40°C cold-resistant grades for outdoor equipment in extremely cold climates;
Limitations: Contains the highest glass fiber content; flow properties are weaker than those of low-glass-fiber grades; molding of complex, thin-walled, small parts is relatively difficult; optimal for thick-walled and large structural components.
Drying: Vacuum dehumidification drying at 110–120°C for 5–7 hours; strictly control moisture content to <0.10% to prevent silver streaks and bubbles;
Barrel temperature: 275–295°C; nozzle temperature: 280–290°C (higher temperatures are required for high-glass-fiber grades to improve flowability);
Mold Temperature: 95–115°C to optimize surface finish, reduce fiber protrusion, and stabilize product dimensions;
Mold Requirements: Mold cavities must undergo nitriding for wear resistance; draft angle ≥ 1.8° to reduce the likelihood of demolding scratches.
