5 Micron (5µm) PET Film is considered an ultra-thin polyester film, known for its high transparency, moderate mechanical strength, and excellent chemical stability. Due to its unique thinness, this type of film plays an important role in several specialized applications:

Typical Application Scenarios:

1.Electrical Insulation in Electronic Components

• Used as a dielectric film in capacitors, especially in miniature capacitors.
• Serves as an interlayer insulation or support layer in flexible printed circuits (FPC).

2.Flexible Displays / OLED / TFT Devices

1. Acts as an ultra-thin substrate or protective layer in the structure of flexible displays.
2. Provides insulation or structural support in display modules, requiring high thinness and uniformity.

3.Base Material for Electronic Adhesive Tapes

• Serves as the carrier film for ultra-thin double-sided tapes or conductive adhesive tapes.

4.High-Precision Labels or Packaging Films

• Acts as a protective film in chip-level packaging, such as in wafer-level packaging processes.

• Used as a base for ultra-thin adhesive labels, particularly in applications requiring thermal transfer or laser cutting.

5.Solar Cell Backsheets or Thin-Film Modules

• May serve as an ultra-thin support film in CIGS or flexible solar cell components.

6.Medical / Sensing Devices

• Used as a base or circuit carrier in emerging medical devices, such as biosensors and flexible electronic patches.

Special Notes:

Due to its extremely thin profile, 5µm PET film is generally not used for structural support but rather for functional coatings, isolation, electrical insulation, or in miniaturized devices.

It is often combined with functional coatings (e.g., conductive layers, barrier coatings, anti-static layers) to enhance its performance.5µm PET film is generally not used for structural support but rather for functional coatings, isolation, electrical insulation, or in miniaturized devices.

It is often combined with functional coatings (e.g., conductive layers, barrier coatings, anti-static layers) to enhance its performance.

In next text, we will talk about "where you need micro-perforated pet film".