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17 clicksPA66+GF30 (30% glass fiber reinforced polyamide 66) is one of the most standard and widely used materials for automotive radiator fans and fan shrouds, due to its excellent heat resistance, rigidity, dimensional stability and fatigue resistance.
1.Key Reasons for Using PA66+GF30
High heat resistance: HDT around 210–220°C, stable in long-term engine bay high-temperature environments
High rigidity & low deformation: maintains shape at high temperature, prevents fan blade vibration and noise
Good fatigue resistance: withstands long-term high-speed rotation and vibration without cracking
Dimensional stability: low molding shrinkage, ensures balance and assembly accuracy
Chemical resistance: resistant to coolant, engine oil, moisture and salt spray
Cost-effective: balanced performance and price for mass production
2.Typical Applications
Radiator fan blades
Cooling fan hubs
Fan shrouds / fan frames
Condenser cooling fan components
