Safety films consist of a single thin layer of sheet polyester with either a pressure sensitive or a water-activated acrylic adhesive.
These films are generally four to seven mil (100 to 175 microns; 4 to 7 mil) in nominal thickness and are designed to prevent or reduce the likelihood of injury as a result of accidental glass breakage. Safety films only meet the minimum requirements as stipulated by the various controlling bodies.
Test description: (pendular soft impact, simulated human body, "safety"), which typically qualify wired glass, tempered glass, single-interlayered glass and regular float glass with 2, 4 resp. 7mil films for use in public buildings etc. 45kg lead shot bag, pendular impact on vertical door-size pane, criteria is whether or not the simulated 11-year-old boy hurts himself when running into the simulated glass door.