PET film and PETG film are both widely used plastic films, but there are some differences in their performance, application and price. This article will explore the characteristics of the PET VS PETG films in depth, to help you choose a more suitable material for you.

1. Basic Introduction

What is PET film?
PET film: Made from polyethylene terephthalate (PET), it has excellent transparency, mechanical strength, barrier properties and chemical resistance. It is commonly used in applications such as food packaging, labeling, laminates and industrial films.
What is PETG film?
PETG film: Made from polyethylene terephthalate copolyester (PETG), it is based on PET with the addition of cyclohexyl glycol (CHDM) copolymer monomer, which improves toughness and weather resistance.

PET Metalizing Base Film-1

2, The performance comparison

PerformancePET filmPETG film
Mechanical strengthHighHigh
Barrier property ExcellentExcellentExcellent
Chemical resistanceExcellentExcellent
Processability goodGoodGood

3. Application areas

PET film: food packaging, electrical and electronic appliances, pharmaceutical packaging, industrial film, etc.
PETG film: food packaging, beverage bottles, automobile parts, building materials, etc.

4. How to choose the right material

When choosing PET film and PETG film, please consider the specific requirements of your application:

  1. For applications requiring optical clarity: If your application requires excellent clarity and transparency, PET film may be the ideal choice due to its excellent optical properties.
  2. For impact applications: If your application involves handling or transportation where impact resistance is critical, PETG films offer excellent durability and protection against damage.
  3. For thermoforming or display applications: PETG film’s thermoforming capabilities and transparency make it ideal for applications such as flip-top packaging, displays and signage.
  4. For printing and branding: If your application requires high-quality printing and branding, PETG film’s excellent printability ensures vivid graphics and clear information.
petg shrink film production machines


PET VS PETG film each has its advantages, and the choice of material depends on your specific needs.