Diofan® PVDC

Aqueous high barrier polymer dispersions

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Diofan® aqueous PVDC dispersions, when applied on various types of base webs, significantly enhance their barrier and packaging properties, enabling them to ensure the freshness of food or to preserve the efficacy of drugs even when distributed to remote geographical areas.

In addition to offering high barrier properties for food and pharmaceutical packaging, Diofan® PVDC products are the basic ingredient for effective corrosion protection systems in the metal converting industry and maintenance sector. The building industry appreciates the unsurpassed humidity barrier for walls and floors of coating and primer systems containing Diofan® PVDC resins.

Chemical Resistance

The broad-ranging chemical resistance of Diofan® PVDC coatings help protect the quality, appearance and performance of your valuable products.

Corrosion Protection

Thanks to its unrivalled low moisture and water permeability, single coats or primers based on Diofan® PVDC dispersions exhibit outstanding corrosion resistance, even in the most severe environments.

Diofan® PVDC binders provide excellent early water resistance, with overall performance equivalent to that obtained from traditional high performance solvent based paint systems (salt spray performance > 1000 h). Diofan® PVDC helps in the formulation of highly technical, one-pack, water-based paints which are better for both health and the environment.

This low VOC dispersion (<100 ppm) allowing for the production of anti-corrosion systems compliant with European and local regulations, notably those related to VOCs.

Combination of Barrier Properties

Diofan Intrinsic Barrier





The majority of liquid High Barrier Polymer is applied in a dedicated coating process. State-of-the-art coating machines or inline coating stations possess reverse gravure coating systems with closed pressurized chambers, corona treatment for the substrate, air flotation dryers (temperature and web tensions controlled), and inline measurement devices for coating weight, films shrinkage and web inspection.

Proven open gravure systems and air knife coating are still widely used. Examples of special applications include spray coating or dip coating.

Diofan lab coating lineup

Technical Data Sheets

Diofan® A 050A high performance barrier polymer latex for coating on various substrates. It is generally used as a topcoat on paper and cardboard.
Diofan® A 063A barrier polymer dispersion for coatings that exhibit a good direct adhesion to corona treated polyolefin and PET films.
Diofan® A 297An anionic aqueous barrier polymer dispersion for coatings on plastic film applied at high processing speed.
Diofan® P 520A water based copolymer dispersion as binder for formulated one-component, air drying paints and coatings where high corrosion protection of the substrate is targeted.
Diofan® P 530An anionic aqueous copolymer dispersion intended to be used as high moisture in barrier in the building industry and for corrosion protection application.
Diofan® A 586An anionic aqueous copolymer dispersion for flexible barrier coatings specially on cellulosic substrates.
Diofan® A 602An anionic aqueous copolymer dispersion intended to be used for moisture barriers in the building industry.
Diofan® A 610An anionic aqueous copolymer dispersion intended to be used as high moisture barrier in the building industry
Diofan® A 736A barrier polymer latex intended to be used as a flexible underlayer for rigid PVC films and other substrates, to be covered with an appropriate topcoat.
Diofan® B 206A PVDC latex designed for high speed coating process of plastic films. This new grade is recommended for food packaging applications when both good barrier properties and low sealing temperatures are needed.
Diofan® B 204An anionic aqueous copolymer dispersion with excellent barrier performance and longer latex shelf-life.