BOPP vs PET Film: Key Differences and Applications Explained

BOPP (Biaxially Oriented Polypropylene) and PET (Polyethylene Terephthalate) films are widely used packaging materials with distinct properties. BOPP film offers high clarity, moisture resistance, and flexibility, making it ideal for food packaging and labels. PET film provides superior tensile strength, thermal stability (up to 150°C), and chemical resistance, commonly used for electronics and industrial applications. Key differences include oxygen barrier properties—BOPP has moderate barrier performance (20-30 cm³/m²/day at 23°C), while PET excels with 5-10 cm³/m²/day. Recyclability also varies: PET is widely recycled (global recycling rate ~55%), whereas BOPP requires specialized processes. Cost-effectiveness favors BOPP for short-term packaging, while PET’s durability suits long-term solutions.

Market data highlights PET’s dominance in sustainability, with over 70% of brands prioritizing it for recyclable packaging. BOPP remains popular in Asia-Pacific, holding 40% of the flexible packaging market due to low production costs. For SEO-driven content, focus on industry-specific keywords like "high-barrier PET film for electronics" or "BOPP film for food labels" to align with Google’s E-A-T guidelines. Include comparative metrics such as tensile strength (PET: 150-300 MPa vs. BOPP: 100-200 MPa) and COF values (BOPP: 0.2-0.4) to enhance credibility. Always cite regulatory standards (e.g., FDA compliance) and real-world applications, like PET in solar panels or BOPP in adhesive tapes, to improve search visibility and user engagement.