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Moisture Vapor Barrier

Moisture Vapor Barrier

Imerys ready-to-use, water-based coating mineral and formulation solutions impart a functional barrier against ingress of moisture vapor for fiber-based packaging.

Application areas

  • Bakery
  • Fast food
  • Frozen food and chilled food
  • Dry food
  • Consumer goods
  • Reel and ream wrap


It is possible to reduce Moisture Vapor Transmission Rate (MVTR) to 10 to 40 g/m²/day in jungle conditions (38°C at 90% humidity) at coatweights similar to polyethylene extruded film. Coatings are formulated to provide the optimal performance as demanded by a given application. These coatings allow for a cost-effective alternative to traditional PE lamination.


  • Glueable with both hot melt and cold set adhesives
  • Can combine properties of release & grease barrier as required
  • Heat sealable if required
  • FDA/BfR compliant for food contact
  • Repulpable
  • Can be adapted for varied grades of fiber-based substrates – carton, corrugated or flexible paper
  • Can be applied using conventional coating techniques (curtain, blade, rod, size press), or flexo and rotogravure
  • Easy to handle & safe to apply

For more information, please contact formulations@imerys.com

We offer a full range of bespoke formulation and technical and process support services to help you match the right mineral grade to your application requirement.

Please contact us. We will be only too happy to help

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