[Honeywell (formerlyAlliedSignal)] A registered trademark for an laminated barrier film. Aclar is clear, heat-sealable film composed of layers of polychlorotrifluoroethylene (PCTFE) and polyester (PET) sandwiched between two layers of polyethylene (PE). The multifilm laminate provides a barrier for oxygen and water vapor. Aclar has been used to prepare sealed bags for low-oxygen level pest eradication.
Synonyms and Related Terms
For 1 mil film: Oxygen transmission = 13.9 ml/m2d Water vapor transmission = 0.3 gm/m2d
Sources Checked for Data in Record
- Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
- Pam Hatchfield, Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
- Conservation Support Systems, Conservation Support Systems, Catalog, 1997