A highly robust and unique mechanical frame system designed to clamp a multi laminated high specification security film to a window frame. This system creates a defensive shield designed to hold glass in situ after blast or vandalism damage. By keeping glass in place the integrity of the building remains intact.

Through the unique film loop and bar clamp system security window film can be made integral to the window frame. This combination acts as a holding shield to prevent glass shards from leaving the frame area. The film is evenly secured along the whole length of the frame, increasing its inherent strength. The colour coded powder coated capping strip provides for a pleasing, un-obtrusive visual effect.