Rocklid™ is a coated polyester film and is 99.9% pure polyester in its composition. Exceptionally strong suitable for ovening, microwaving in chilled and frozen applications.
Rocklid™ SPX-LT-AF films make strong peelable seals to APET, rPET and PVC containers. These films have good clarity and seal well at low temperatures starting at 100 C. Seal strengths remain constant through temperature range 100 C to 200C. Rocklid™ SPX-LT-AF film can also be used where contamination is evident. The AF properties have a permanent shelf life and do not migrate or transfer which leaves opposite side suitable for printing and / or lamination. Rocklid™ SPX-LT-AF films are microwaveable and ovenable, designed to be strong peelable during production and post microwave.
However, during transit, the film will be a very strong seal. These films will self-vent in microwave.
Rocklid™ SPX-LT-AF films seal well to all RPET containers without tray distortion. Will seal through contamination.
Rocklid™ SPX-LT-AF films 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.
APET, PVC, RPET