Automotive Plastic Materials Technical Specification Table

Below is the automotive plastic materials technical specification table for the injection mold industry.

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Automotive Plastic Materials

Automotive Plastic Materials Technical Specification Table
Material Type	Chemical Name/Abbreviation	Key Properties	Primary Applications	Commercial Grades	Processing Methods
Polypropylene	PP	Cost-effective, chemical resistant, processable (glass-fiber reinforced options)	Bumpers, dashboards, door panels, HVAC vents	Sabic® 5C39H (20% GF)	Injection Molding
ABS	Acrylonitrile Butadiene Styrene	High impact strength, glossy surface, moderate heat resistance	Grilles, interior trims, control panels, buttons	LG Chem® ABS AF345A	Injection/Extrusion
Polyamide (Nylon)	PA6/PA66	High strength, wear-resistant, heat-resistant (PA66 > PA6), GF/CF reinforced	Engine covers, gears, fuel system components, connectors	DuPont™ Zytel® 70G35 (35% GF)	Injection/Extrusion
Polycarbonate	PC	Transparent, impact-resistant (~135°C), prone to stress cracking	Headlight lenses, instrument clusters, sunroof glazing (PMMA blends)	Covestro Makrolon® 2458	Injection/Extrusion
Polyoxymethylene	POM	High stiffness, self-lubricating, fatigue-resistant, poor acid resistance	Door lock mechanisms, fuel pump components, seatbelt buckles	Celanese® Hostaform® C9021	Injection Molding
Thermoplastic Polyester	PBT/PET	Chemical resistance, electrical insulation, low moisture absorption	Electrical connectors, sensor housings, ignition coils	BASF Ultradur® B4300G6 (30% GF)	Injection Molding
Polyphenylene Ether	PPE/PPO	Dimensional stability, heat resistance, low dielectric loss (often PS-blended)	Wheel arches, battery housings, electronic enclosures	SABIC Noryl® PX1001	Injection Molding
Thermoplastic Elastomer	TPE/TPV	Rubber-like flexibility, weatherability, recyclable	Seals, dust boots, vibration dampers	ExxonMobil Santoprene™ 121-80	Extrusion/Injection
Long Fiber Thermoplastic	LFT-PP	High rigidity, impact resistance, lightweight (30-50% vs metal)	Front-end modules, seat frames, spare tire wells	SABIC STAMAX® 30YH570 (30% GF)	Compression Molding
Polyurethane	PU	Foamable (flexible/rigid), energy-absorbing, aging-resistant	Seat cushions, steering wheel wraps, acoustic insulation	BASF Elastollan® 1185A	Reaction Injection Molding (RIM)

Key Properties Comparison
Property	Optimal Material	Alternative	Technical Notes
High Temp (>150℃)	GF-reinforced PA66	PPS	Critical for under-hood components
Impact Resistance	PC/ABS Alloy	ABS	Essential for lighting components
Weight Reduction	LFT-PP	GF-reinforced PA6	Preferred for structural modules
Weather Resistance	UV-stabilized ASA	PMMA	Exterior parts require UV protection
Cost Efficiency	Mineral-filled PP	HDPE	Economical choice for non-critical interiors

Processing Method Compatibility
Manufacturing Process	Compatible Materials	Typical Products	Advantages
Injection Molding	PP, ABS, PA, PC	Complex interior components	High precision, mass production capability
Extrusion	TPE, PVC	Seals, wire harness conduits	Continuous profile production
Blow Molding	HDPE, PP	Fuel tanks, air ducts	Hollow part specialization
Reaction Injection Molding	PU	Steering wheels, bumper cores	Large foam part fabrication

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