PE vs PP: Selecting the right packaging film is one of the most critical decisions when running a bagging machine—especially for food manufacturers using UBL automated bagging equipment. Choosing between these two materials affects not only food shelf life and product quality but also machine efficiency, sealing stability, and long-term production cost. This guide breaks down their real performance differences so you can pick the film that maximizes your UBL automation ROI.
PE Film vs. PP Film: Core Performance Comparison
| Category | PE Film | PP Film |
|---|---|---|
| Barrier Properties | Excellent moisture resistance;lower oxygen/aroma barrier | Strong moisture + oxygen + aroma barrier; helps extend shelf life |
| Heat Resistance | Low sealing temperature; easy to run but softens under high heat | High heat stability; ideal for hot-fill, sterilization, or higher-temp sealing |
| Machine Compatibility | High flexibility; great for loose, irregular, or soft products on UBL machines | Rigid, stable bag shape; ideal for UBL high-speed lines with stacking & conveying |
| Cost & Applications | Low cost; suitable for large-volume, cost-sensitive foods (produce, frozen foods) | Slightly higher cost; premium look (clarity + gloss) for snacks, coffee, retail foods |
Film Selection Guide for UBL Bagging Machines
For fresh produce, frozen food, or bulk items → Choose PE Film
Great sealing performance
Superior moisture protection
Lower cost for high-volume production
Works perfectly on UBL general-purpose bagging equipment
For snacks, dried foods, coffee, or premium retail products → Choose PP Film
High oxygen & aroma barrier extends freshness
Stiff, crisp bag shape ideal for UBL high-speed pack lines
Better visual appeal for branded retail packaging
In conclusion
PE Film: Best for cost efficiency, moisture resistance, and flexible packaging of produce and frozen foods.
PP Film: Best for long shelf life, high-end appearance, and stable high-speed production of snacks, nuts, coffee, and retail-ready products.
Now do you know which film (PE or PP) is right for your products?
