The PFS Flexible Anchoring System® (PFAS) works by using a specially designed flex-zone that expands when under pressure and is designed to delay the point at which the filmed glass pane enters the interior. The flexi-zone contracts and directs the glass pane away from the building protecting all those inside.

To be effective, the glass containment system must be used in conjunction with safety or security window film. The anchoring system is fixed to both the safety film and the frame edge. Once a force is applied, the energy is absorbed by the flex-zone, ensuring that the glass and film remain within the frame.

The PFS Flexible Anchoring System has considerable advantages against fixed and silicon glass retention systems and stands out on its own in performance tests, achieving the highest performance rating of any glazing retention system available worldwide.