ALOx – Clear Barrier Aluminium Oxide Coated OPP Film
Packaging is evolving fast. Brands want longer shelf life and better product protection, but they also want packaging that looks great, stays lightweight, and supports recyclability goals. That’s where ALOx clear barrier film comes in.
ALOx is an aluminium oxide-coated oriented polypropylene (22µ OPP) film designed to deliver high barrier performance while remaining completely clear. Unlike traditional foil laminates or metallised films, ALOx keeps the package fully transparent, allowing the product to stay visible on the shelf without sacrificing protection.
ALOx films are built in layers: Top Coating / ALOx Layer / OPP
The aluminium oxide coating creates a high-performance barrier to oxygen, moisture, and aromas, while the OPP base provides strength, flexibility, and compatibility with polypropylene packaging systems, enabling the creation of mono material packaging.
Key Features
ALOx clear barrier films offer:
- Good printability
- Good moisture barrier
- Excellent oxygen barrier
- Excellent aroma barrier
- No chlorine content
- Suitable for mono-material packaging
Benefits for Brands & Converters
- High barrier — without hiding the product
ALOx provides barrier performance similar to metallised films but stays transparent. That means customers can see what they’re buying, which is especially valuable for premium or natural products where appearance matters. - Supports mono-material PP structures
When paired with other PP layers, ALOx helps create mono-material polypropylene packs, improving recyclability compared to mixed-material or foil-based solutions. - Added UV protection
ALOx also offers protection against UV rays, helping reduce spoilage, colour fading, and aroma loss in sensitive products.
Typical Applications
Because of its clear, high-barrier performance, ALOx is commonly used in:
- Food and snack packaging
- Stand-up pouches
- Lidding films
- Dry foods, spices, and aroma-sensitive products
- Bakery goods
- Pharmaceuticals
- Premium and luxury product packaging
- Mono-material PP packaging formats
Why ALOx Is a Smart Step Forward
As packaging moves toward recyclable mono-material solutions, ALOx lets brands keep the benefits of high barrier films without the compromises of foil/metallisation.
In short: Clear visibility + strong protection + PP-based recyclability support.
If you’re working on flexible packaging that needs shelf-life, aroma retention, or moisture protection, ALOx is a versatile, future-ready option worth considering.
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