These are common abbreviations for plastics or polymers, representing the following materials:
- PE: Polyethylene, one of the most common plastics, offers strong plasticity and chemical resistance, and is widely used in packaging and containers.
- HDPE: High-density polyethylene, with a high density, good hardness, and strength, is commonly used in rigid plastic bottles, pipes, and more.
- LLDPE: Linear low-density polyethylene, with excellent flexibility and stretch resistance, is often used in films (such as food wrap) and hoses.
- LDPE: Low-density polyethylene, with a softer texture and good transparency, is commonly used in plastic bags and films.
- PP: Polypropylene, with good heat resistance and a balance of hardness and toughness, is commonly used in tableware, plastic boxes, bottle caps, and more.
- CPP: Cast polypropylene, produced through a casting process, offers high transparency and excellent sealing properties, and is often used in food packaging.
- OPP: Oriented polypropylene (biaxially oriented polypropylene), with improved strength and transparency after biaxial stretching, is commonly used in packaging films and tape base films.
- VMPET: Vacuum aluminized polyester film, with aluminum plated on the surface of PET film, has light-shielding, moisture-proof and reflective properties, and is mostly used for food and cosmetics packaging.