Seaford School District — Security Film & 3M IPA in Seaford, Delaware
500 square feet of safety and security film paired with roughly 480 linear feet of 3M Impact Protection Attachment — a mirrored safety retrofit that keeps glass in the opening after it breaks.
- Security film installed
- 500 sq ft
- 3M IPA attachment
- ~480 linear ft
- Sector
- K–12 district
Project snapshot
- Client
- Seaford School District
- Location
- Seaford, Sussex County, Delaware
- Sector
- K–12 education
- Film scope
- 500 sq ft safety and security film
- Attachment
- ~480 linear ft 3M Impact Protection Attachment
- Application
- Mirrored safety retrofit on existing glazing
PDF case study
Seaford School District — project documentation
Shareable one-page summary of the scope, products and finished work.
The challenge
The district needed to harden existing exterior glazing without replacing it. Full glazing replacement across a school building is a capital project with a long lead time; the buildings were already in use.
Film alone was not the answer. Security film holds a broken pane together, but if the glass is not attached to the frame the whole filmed sheet can still be pushed out of the opening. That gap is what an attachment system closes.
Project objectives
- Increase forced-entry delay at vulnerable ground-level glazing
- Keep glass in the opening after impact instead of letting it fall or be pushed through
- Retrofit existing glazing rather than replace it
- Complete the work without disrupting the school calendar
Why this solution
Safety and security film bonds the glass into a single sheet so it holds together under repeated impact instead of failing into an open hole.
3M Impact Protection Attachment is the second half of the system: a structural silicone bead that bonds the filmed glass edge to the window frame. That is what converts a filmed pane into a pane that stays in the opening.
Roughly 480 linear feet of attachment against 500 square feet of film reflects a lot of individual openings — the perimeter, not the area, is what drives attachment labor on a school retrofit.
The film is mirrored, which adds daytime privacy from the exterior. That effect depends on the lighting differential: it works when the outside is brighter than the inside, and reverses at night when interior lights are on.
Installation approach
- 1
Every opening in scope was surveyed and measured before mobilization — frame type and reveal depth determine whether an attachment bead can be run and how it has to be tooled.
- 2
Glass was fully cleaned and prepped, film was installed, and the film was allowed to set before the attachment was applied.
- 3
The structural silicone attachment was run continuously along the daylight edge and tooled flat. A gap in the bead is a gap in the system, so continuity along the run is the whole point.
- 4
Work was scheduled around district operations so no instructional time was lost.
Results
- 500 sq ft of safety and security film installed on existing district glazing
- ~480 linear feet of 3M Impact Protection Attachment run along filmed openings
- Glass retained in the frame after breakage instead of being pushed clear
- Daytime exterior privacy added by the mirrored film finish
- Existing glazing retained — no glass replacement required
Project photos
Real photos from this project or program. Tap any image to view it larger.
Seaford School District — frequently asked questions
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