The most sustainable solution for Ultra-High Barrier Blister Packaging When it comes to protecting the efficiency of ultra-sensitive pharmaceuticals, nothing can compare to the ultra-barrier performance of our Ultramax-B film. This remarkable, high-performance film provides superior protection from both oxygen and water vapor. Ultramax B is a better alternative to PCTFE for the most important KPIs of the Pharma Packaging Industry i.e., Performance, Sustainability & Cost.