Plastic injection molding can utilize a wide variety of plastic materials, each with its own unique properties and characteristics. Here are some of the most common types of plastics used in injection molding:

1. Polypropylene (PP):
   • PP is lightweight, durable, and has excellent chemical resistance.
   • It’s commonly used in automotive parts, packaging, consumer products, and medical devices.
2. Polyethylene (PE):
   • PE is known for its flexibility, toughness, and moisture resistance.
   • It’s used in applications such as bottles, containers, plastic bags, and toys.
3. Acrylonitrile Butadiene Styrene (ABS):
   • ABS is a tough, impact-resistant plastic with good heat resistance.
   • It’s used in automotive parts, electronic housings, appliances, and toys.
4. Polycarbonate (PC):
   • PC is transparent, lightweight, and has excellent impact resistance.
   • It’s used in applications requiring clarity and high strength, such as lenses, safety glasses, and electronic components.
5. Polyethylene Terephthalate (PET):
   • PET is clear, strong, and has good barrier properties against moisture and gases.
   • It’s commonly used in beverage bottles, food packaging, and fibers for textiles.
6. Polyvinyl Chloride (PVC):
   • PVC is versatile, cost-effective, and has good chemical resistance.
   • It’s used in pipes, fittings, window profiles, and various consumer products.
7. Polyethylene Terephthalate Glycol (PETG):
   • PETG combines the properties of PET with enhanced flexibility and impact resistance.
   • It’s used in applications such as medical devices, food packaging, and signage.
8. Polyoxymethylene (POM), also known as Acetal:
   • POM is a strong, rigid, and low-friction plastic with excellent dimensional stability.
   • It’s used in precision mechanical parts, gears, bearings, and automotive components.
9. Polyurethane (PU):
   • PU is a versatile material with a wide range of hardness and flexibility.
   • It’s used in applications such as foam padding, seals, gaskets, and automotive interiors.
10. Nylon (Polyamide):
    • Nylon is strong, abrasion-resistant, and has good chemical resistance.
    • It’s used in engineering components, gears, bearings, and electrical connectors.

These are just a few examples of the many types of plastics used in injection molding. The choice of material depends on factors such as the intended application, required properties (e.g., strength, flexibility, heat resistance), regulatory requirements, and cost considerations.