3M Safety Film and 3M Security Film are thicker, usually clear films. These films are installed onto the glass and secured to the window frame with specified attachment systems. They can be used to slow forced entry for anti-intrusion, bomb blast mitigation, and windstorm protection. Coming in a variety of thicknesses, these films are very popular in M.U.S.H. (Municipalities, Universities, Schools, and Hospitals) projects as well as residential settings to allow for a longer response time & protection in a crisis situation.