Safety S20 Exterior is ideal for low to non-impact safety applications. This window film may be used for fragment retention, and address the problem of spontaneous glass breakage in the event of severe weather events.
3M Exterior Safety Window Films

Exterior glass covering for window security
Exterior Safety Films are applied on the outside of windows to provide effective protection from injuries to persons or damage to items caused by fragments of broken glass. If glass is broken, the glass shards are held together by a strong acrylic adhesive.
Safety film options to meet your diverse needs
3M's Safeguard Exterior Films are available in three thicknesses to meet the unique needs of both new buildings and retrofit projects. They are ideal for areas where interior applications are not possible. This 3M film also blocks UV light and significantly reduces fading of furniture and fabrics.
Safety S40 Exterior is designed for use on the exterior surface of windows. It is composed of a transparent and weather stable polyester film, scratch resistant surface and a strong acrylic adhesive. The films high tensile strength and elongation at break point increases resistance of the glazing system to impact and pressure. The film also significantly reduces the transmission of UVA and UVB rays which are the main cause of fading.
3M Safety Films provide effective protection from injuries to persons, or damage to items caused by fragments of broken glass. In the case of glass breakage the fragments are held together by the strong acrylic adhesive. A clear 4 mil (.004”) safety film that is ideal for areas where interior application is not possible.
Safety S70 Exterior is designed for use on the exterior surface of windows. It is composed of a transparent and weather stable polyester film, scratch resistant surface and a strong acrylic adhesive. The films high tensile strength and elongation at break point increases resistance of the glazing system to impact and pressure. The film also significantly reduces the transmission of UVA and UVB rays which are the main cause of fading.
3M Safety Films provide effective protection from injuries to persons, or damage to items caused by fragments of broken glass. In the case of glass breakage the fragments are held together by the strong acrylic adhesive. A clear 7 mil (.007”) safety film that is ideal for areas where interior application is not possible.