Rocklid™ is a coated polyester film and is 99.9% pure polyester in its composition. Exceptionally strong.
Rocklid™ MPR films are engineered to achieve very strong peel seals to APET and PVC trays, including APET lined ready meal trays. Rocklid™ MPR film is designed to be peelable throughout its life. MPR will seal through contamination and yet form good cold peelable seals. Rocklid™ is microwaveable and ovenable, chillable and freezable. The film will self-vent in a conventional oven (fan assisted).
Rocklid™ MPR film seals at much lower temperatures than comparable films on the market. Seal strength reduces following microwaving to achieve a smooth easy peel. Rocklid™ MPR film will also seal through a certain degree of contamination of sealing flanges but flanges should be kept clean.
Rocklid™ MPR film can be supplied printed and can be laminated to other films.
Rocklid™ film complies with all European and FDA regulations, including cooking. 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.