Medium Barrier & High Barrier Thermoforming Films : Choosing the Right Level of Protection
In today’s competitive packaging landscape, thermoforming films are enablers of food safety, shelf-life extension and brand differentiation. One of the most important decisions for packers and brand owners is selecting between medium barrier and high barrier solutions.
Understanding the difference
Medium Barrier Films
Designed for applications where moderate protection against oxygen and moisture is required. They typically feature structures like PA/PE or PP-based blends with optimized sealing performance. These films are widely used for chilled and short shelf-life foods, such as fresh dairy products, poultry and ready-to-eat snacks.
High Barrier Films
Developed for applications that demand maximum protection against oxygen, moisture, aroma and UV light. These structures often integrate EVOH, advanced tie layers, or metallization/SiOx coatings to achieve very low OTR/WVTR values. High barrier films are critical for extended distribution chains, export products and sensitive categories such as meat, seafood, cheese and pharmaceutical packs.
Medium Barrier
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Cost-efficient for packers who do not need extended shelf life.
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Easier recyclability pathways with simplified structures.
High Barrier
Helps preserve natural color, aroma, and texture.
Protects premium products (e.g., gourmet meats, exotic seafood, high-value dairy) in export supply chains.
Key performance factors
- Shelf-life stability : Correct barrier selection prevents spoilage and food waste.
- Formability & machinability : Films must thermoform smoothly without whitening or cracking.
- Seal integrity : Wide sealing windows reduce leaks and recalls.
- Clarity & aesthetics : For premium categories, visual appeal matters as much as protection.
