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PET film and GAG film are two common types of films used in various industries for their unique properties and applications. Understanding the differences between PET film and GAG film is important for selecting the right type of film for your specific needs.

PET Film:

PET film stands for polyethylene terephthalate film, which is a type of thermoplastic polymer that is commonly used in packaging, printing, and electrical applications. PET film is known for its excellent mechanical properties, including high tensile strength and good dimensional stability. It is a strong, durable film that is resistant to moisture and chemicals, making it ideal for packaging and printing applications where protection from external factors is required.

PET film comes in a range of thicknesses and grades, allowing for a wide range of uses. It is often used in the creation of laminated films, which combine multiple layers of PET film with other materials to create added functionality, such as UV resistance or heat sealability.

GAG Film:

GAG film is a type of film that is made from ethylene and alpha-olefin copolymers. It is a thin, lightweight film that is known for its high clarity and low seal initiation temperature (SIT), which means it can be sealed at a lower temperature compared to other films. GAG film is often used in food packaging applications because of its excellent barrier properties, which help protect the food from moisture and oxygen.

GAG film is available in a variety of thicknesses and grades, allowing for a wide range of uses. It can be used in laminated films to create added functionality, such as gas barrier properties or heat sealability. Its high clarity also makes it ideal for use in applications where visual appeal is important, such as with display packaging.

The Differences:

The main differences between PET film and GAG film lie in their chemical composition and properties. PET film is made from a thermoplastic polymer and is known for its mechanical properties, while GAG film is made from a copolymer and is known for its high clarity and low SIT. PET film is generally stronger and more durable than GAG film, but GAG film offers excellent barrier properties and is often used in food packaging applications.

Ultimately, the choice between PET film and GAG film will depend on the specific needs of the application. Consider factors such as strength, clarity, and barrier properties when choosing between these two types of films. With the right selection, both PET film and GAG film can offer excellent performance in a variety of applications.