New PVDC coating solution for more sustainable pharmaceutical blister films
Solvay launched Diofan Ultra736, a new polyvinylidene chloride (PVDC) coating solution with ultra-high water vapor barrier that reduce carbon footprint for pharmaceutical blister films.
Diofan Ultra736 is suitable for sustainable pharmaceutical blister films.
The new aqueous dispersion is fluorine-free, meets regulatory requirements for direct pharmaceutical contact and supports design of sustainable films with thinner coating designs.
With its ultra-high barrier performance, the new coating solution allows the reduction of coating thickness, compared to incumbent mid to high barrier PVDC coatings, without affecting the functionality.

The graph shows the high performance of new PVDC coating solution compared to others.
In particular, for Duplex barrier structures, it enables halving the number of base coat layers while delivering the same water vapor barrier. This approach can reduce overall carbon footprint of final blister film structures by up to 13%.
Diofan PVDC coatings are widely used in pharmaceutical blister packaging to protect sensitive solid-dose drug preparations, as well as in the packaging of delicate food and similar other consumer goods.
They can be applied on both plastic and paper-based substrates and are characterized by their unique combination of water vapor and oxygen barrier.