3M SH8 (S80)safety window film

Safety film from 3M

A 200μm, two-layer clear film tuned for commercial facades. Strong glass retention against accidents, smash-and-grab and seismic events without altering the look of the glass.

SH8 is a two-ply, 200 micron, optically clear film for the interior face of windows and doors. The construction is the point: two bonded plies reach 890 newtons per 25 mm of break strength, and under ANSI Z97.1 impact testing SH8 rates Class A, unlimited, at 400 foot-pounds, where the single-ply SH7 rates Class B at 150.

3M rates it for break and entry, spontaneous glass breakage and seismic events, with the same hard requirement as the rest of the series: for forced entry, and on single-pane tempered glass, it must be installed with 3M's Impact Protection Attachment sealant, which ties the filmed pane into its frame so the whole assembly resists together.

Being clear, it changes almost nothing about the light: 87% visible transmission on single clear glass, glare essentially unchanged, and 99% of UV blocked. 3M publishes full figures for double glazing too, with 32% of solar energy rejected on clear sealed units. The limit is stated just as plainly: it is not bulletproof and not sold as intruder-proof. It buys time and keeps the glass in the frame.

Which glass it suits

SH8 goes on the interior surface, and 3M publishes its performance for single clear, tinted and both double-glazed combinations, tested to ANSI Z97.1 Class A on annealed glass. For break-and-entry duty specify it with the IPA edge sealant; on its own it is a fragment-retention film, not a barrier.

Performance at a glance

Specifications

Figures are nominal and provided for comparison. Your specialist confirms the final specification and suitability for your glass on a site survey.