The difference between BOPP pre coating film and PET pre coating film

In the packaging industry, pre coated film is a widely used film to improve the surface gloss, protection, and durability of materials. The two common types of pre coating films on the market are BOPP (biaxially oriented polypropylene) pre coating film and PET (polyethylene terephthalate) pre coating film. Although both types of pre coated films provide similar protective and decorative functions, there are some significant differences in performance. This article will explore in detail the differences between BOPP pre coating film and PET pre coating film. 1. Material characteristics: BOPP pre coating film: This type of pre coating film is made of specially treated BOPP film. It has good transparency and gloss effects, as well as certain flexibility and tear resistance. Due to its low cost and ease of processing, BOPP pre coating film is widely used for surface coating treatment of printed materials. PET pre coating film: In contrast, PET pre coating film is made of thicker PET material, usually between 2 and 4 mils in thickness. Its characteristics include excellent mechanical strength, wear resistance, and chemical corrosion resistance. Therefore, PET pre coated films are commonly used in applications that require higher durability and strength. 2. Scope of application: BOPP pre coating film: suitable for surface treatment of general commercial purposes, such as posters, brochures, flyers, and other printed materials. In addition, it has also been widely used in the outer packaging of food packaging and other light industrial products. PET pre coating film: more suitable for occasions that require stronger protection and durability, such as electronic product packaging, automotive interior parts, and outdoor signage. 3. Heat sealing performance BOPP pre coated film: It has good heat sealing performance and can achieve good sealing through heating and pressure, suitable for product packaging that needs to be frequently opened or resealed. PET pre coating film: Due to its structural characteristics, the heat sealing performance of PET pre coating film is relatively weak, but this deficiency can be compensated for by combining it with other materials. 4. Environmentally friendly BOPP pre coating film: In most cases, BOPP pre coating film can be well recycled and reused, meeting the requirements of modern society for environmental protection. PET pre coated film: It can also be recycled and reused, but due to its unique composition, it may need to be effectively recycled under specific conditions. 5. Price factor: BOPP pre coating film: Due to its advantages of low cost and high production efficiency, the market price is relatively affordable, suitable for users with limited budgets. PET pre coating film: Due to its complexity in raw materials and manufacturing process, and high cost, it is more common in the high-end market. The choice between BOPP pre coating or PET pre coating depends on specific application requirements. If only basic protection and decorative functions are needed, and cost is an important consideration, then BOPP pre coating film may be a better choice; But if higher durability and strength are required, or if packaging materials are used in harsh environments, then PET pre coating film is the ideal choice. In the actual operation process, designers and engineers will comprehensively consider the characteristics of the product and market demand to determine the most suitable pre coating type.