Rockbarrier™ is a high barrier coated polyester film. The coating is globally exclusive to Rockwell Solutions, and is not available elsewhere.
Rockbarrier™ film is a white, clear or metalised film used for die cut lids for the dairy and other industries, where a high Oxygen barrier is required. GPE-N3 is principally used for sealing to PP, PS, APET and PE pots, but can seal to any type of substrate base. Rockwell recommends to test this film with your product to ensure adequate performance.
Different type of Rockbarrier™ films make exceptionally strong peelable seals to all substrates.
Rockbarrier™ film is printable and can be supplied printed.
Rockbarrier™ film complies with European regulations including cooking for aqueous and alcoholic foods. Whilst Rockwell takes all precautions to ensure that their lidding films are suitable for the application intended, the ultimate responsibility lies with the food packer to ensure that the film is suitable for their purpose.