The laboratory also extends its programming to the public, local government agencies, historical organizations, and libraries. A special program, offered with the cooperation of the Genealogical Society of Utah, allows qualifying church records to be microfilmed at no cost to the owners of the original records. However, use copies are at greater risk if they are not handled carefully, since they are easily scratched and torn. This film is also more sensitive to damage from humidity. Vesicular polyester-based film is more durable under average use conditions.
Vesicular film is much less likely to scratch or break and is less sensitive to humidity.
It has shown excellent image stability under practical conditions for decades.