Barrier coatings closing the gap in food applications
Transparent silicon and aluminium oxide coatings on polyester now reach oxygen transmission rates adequate for many ambient food applications, and they leave a laminate that sorting facilities can process. They still suffer flex cracking and pinholing under creasing, which foil below nine microns also does, so the honest comparison is between two imperfect barriers rather than between absolute and approximate. Brand owners under packaging waste pressure increasingly accept a shorter shelf life to obtain a recyclable structure, which is a trade foil cannot answer. That is a trade an absolute barrier simply cannot answer on its own terms.
Market Impact: Locks specifications for 18 months








