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3M™ S2400 Security Window Film · installed by Epic

Fortify Your Glass. Protect Your Assets.

4X greater stretch for break-and-entry protection.

Glass is the most vulnerable point in any building. 3M S2400 is a 24-mil polyurethane security film that helps hold broken glass together during forced-entry, smash-and-grab, and blast events — deterring unwanted entry and protecting people from flying glass. Epic installs S2400 exclusively with the Epic Method, our patent-pending structural attachment process, so the film performs as rated under real-world conditions.

  • Schools & districts
  • Government & critical facilities
  • Retail storefronts
  • Lobbies & entry vestibules
Video thumbnail: 3M S2400 Security Window Film — Forced Entry, Impact & Blast Protection Demonstrated

Built for performance.

Glass is the most vulnerable point in any building. 3M S2400 is a 24-mil polyurethane security film that helps hold broken glass together during forced-entry, smash-and-grab, and blast events — deterring unwanted entry and protecting people from flying glass. Epic installs S2400 exclusively with the Epic Method, our patent-pending structural attachment process, so the film performs as rated under real-world conditions.

Why buildings choose 3M S2400

  • Forced-entry resistance: Holds shattered glass in the frame under repeated impact, giving responders more reaction time.
  • Glass-hazard reduction: Keeps shards intact under impact, reducing injuries and damage.
  • Blast mitigation: Reduces glass-fragment risk in explosion events.
  • UV protection & comfort: Blocks 99% of UV rays to prevent fading of furnishings and inventory.
  • Fast retrofit: Installs on existing glass — no window replacement, minimal downtime.
Important. Product must be installed with the 3M Impact Protection Attachment structural silicone sealant for all windstorm, break & entry, and explosion-mitigation applications. The product is not bulletproof and is not designed to stop intruders.

What sets 3M S2400 apart

  • 4X greater stretch — 560% elongation vs. 130% for PET films — the film absorbs energy instead of tearing.
  • Superior tear resistance — Absorbs more impact energy before tearing.
  • Thickest 3M window film — 24-mil construction for maximum strength.
  • Rapid cure — Up to 80% cured within 48 hours.
  • Crystal clear — 89% visible light transmission — natural light stays.
  • Patent-pending Epic Method installation — Epic’s structural attachment process ensures S2400 performs as rated.

3M S2400 rating

Break and entry★★★★★Safety glazing★★★★★Blast mitigation★★★★★
Specifications

The numbers.

ConstructionTPU (thermoplastic polyurethane)
Thickness24 mil (630 μ)
Graves tear resistance24.6 lbf-in
Tensile strength3,200 psi
Break strength77 lbs/in (342 N/in)
Elongation at break560%
Peel strength> 3 lbs/in
Visible light transmission89%
UV rejection99%
Commercial warranty10-year product + labor (3M authorized install)

Performance testing

Break and entry
  • UL 972 Sect. 6.2
  • UL 972 Sect. 6.4
  • UL 972 Sect. 6.5
Blast mitigation
  • ASTM F1642
  • GSA TS01-2003
Safety glazing
  • ANSI Z97.1
  • EN 12600

Per 3M published data. Values vary by shade and glass type; representative shade shown. No window film is bulletproof or bullet-resistant.

Free download · 2 pages

Epic spec card: 3M S2400

Two pages: performance, what sets it apart, ratings, physical properties, test standards, and Epic’s installation note.

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Best for

  • Schools & districts
  • Government & critical facilities
  • Retail storefronts
  • Lobbies & entry vestibules
  • Houses of worship
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Where Epic installs 3M S2400

On school entries and vestibules, commercial, government and retail glass and homes — always with the Epic Method attachment for forced-entry and blast applications. See it hold on 89 campuses in Colorado, read the district references, or buy through cooperative contracts.

Get a quote on 3M S2400

Tell us the building and the glass. We confirm the right shade and attachment, then send a written estimate.

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