NORTHGUARDWINDOW FILM(437) 217-3456 ↗Hold broken glass together and soften daytime glare
A lighter silver shade that still lets plenty of daylight in.
NorthGuard installs Madico Silver safety film in the lighter shade and thinner build, a reflective film that holds broken glass together. Storefront and office glass in Toronto and the GTA gets a mirror-like daytime look from outside, with the view kept open.
On-site check and written quote · Mobile service across Toronto and the GTA
- Film thickness
- 0.005 in
- Break strength
- 100 pounds per inch of width
- Visible light transmitted
- 44%
Madico's published typical values, measured on single-pane 6 mm clear glass. Full specifications and sources
The broken-glass risk Silver 40 4mil is built for
Madico Silver 40 4mil is for glass where a broken pane would be a hazard or an easy way in. Ordinary glass breaks into loose shards, and a bright sun-facing wall adds glare and heat on top of that. Owners often want one film to handle both without turning the room dark.
How Silver 40 4mil is built and what it does
Silver 40 4mil is the lighter silver shade in the thinner safety build. It lets 44% of visible light through, cuts glare by 51% and rejects 56% of total solar energy, and its break strength is listed at 100 pounds per inch of width. Madico describes the Silver safety films as built to hold broken glass together.
Where Silver 40 4mil fits best
NorthGuard suggests Madico Silver 40 4mil for jobs like these.
- Street-level storefront glass that gets afternoon sun and needs a hold-together layer while staff still look out.
- Office or condo windows that want a mirror-like look from outside with a view that stays open at 44% visible light.
- Glass doors and side panels where a 51% glare cut matters more than the deepest tint.
- Projects that want the lighter Silver 40 shade in the 4 mil build.
What Silver 40 4mil will not do
Madico Silver 40 4mil has limits that NorthGuard states before any quote.
- The finish reflects 27% of visible light outward, so by day the glass looks like a mirror, and after dark with lights on inside the effect flips.
- Madico lists break strength only for this film, with no puncture or tear figures.
- The film holds glass together but does not stop the pane from breaking, so the glass and frame should be checked before install.
Get a Silver 40 4mil quote from NorthGuard
NorthGuard checks your glass on site, confirms that Silver 40 4mil suits it and sends a written quote.
Silver 40 4mil specifications from Madico
Madico publishes these values for Madico Silver 40 4mil, part RS 40 PS SR 4MIL.
| Property | Madico value | Source |
|---|---|---|
| Visible light transmitted | 44% | 1 |
| Visible light reflected, exterior | 27% | 1 |
| Visible light reflected, interior | 26% | 1 |
| Glare reduction | 51% | 1 |
| Total solar energy rejected | 56% | 1 |
| Solar energy transmitted | 32% | 1 |
| Shading coefficient | 0.51 | 1 |
| Solar heat gain coefficient | 0.44 | 1 |
| Ultraviolet rejected | 99% or more | 1 |
| Infrared rejection | 82% | 1 |
| U-factor | 0.94 | 1 |
| Film thickness | 0.005 in | 2 |
| Break strength | 100 pounds per inch of width | 2 |
| Tensile strength | 25,000 PSI average, machine and transverse direction | 2 |
| Peel strength | 5 to 6 pounds per inch | 2 |
| Adhesive | Acrylic pressure sensitive | 2 |
| Structure | Multi-ply laminate | 2 |
- Madico PDF: Safety security film performance measurements
- Madico page: Reflective silver
- Madico PDF: Safety and security brochure
Optical values are Madico's published typical values, measured on single-pane 6 mm clear glass, so results on your own glass can differ.
Silver 40 4mil questions and answers
NorthGuard answers these questions about Madico Silver 40 4mil with Madico's published data.
How much light does Madico Silver 40 4mil let through?
Madico Silver 40 4mil transmits 44% of visible light and reflects 27% outward, measured on single-pane clear glass. Glare drops by 51%. Rooms stay bright enough to work in, which is the point of the lighter Silver shade.
Is Silver 40 4mil a safety film or only a tint?
Madico lists Silver 40 4mil among its Safety and Security films, built to hold broken glass together. It also carries reflective solar numbers, such as 56% total solar energy rejected.
What is the difference between Silver 40 4mil and Silver 40 8mil?
The 4 mil build lists a break strength of 100 pounds per inch of width, and the 8 mil build lists 200. The visible light and glare figures are close, so thickness is the main change. Choose by how much film strength the glass calls for.
Will Silver 40 4mil work for a Toronto storefront facing afternoon sun?
Silver 40 4mil rejects 56% of total solar energy and 82% of infrared on single-pane clear glass, which is a real cut to afternoon sun. The 44% visible light keeps signage and displays readable from inside. Results on double-pane or tinted glass differ, so the glass is checked first.
Madico Silver 40 4mil for Toronto glass that needs backing
NorthGuard installs Madico Silver 40 4mil on Toronto storefronts, offices and ground-floor glass where a broken pane is the worry. NorthGuard looks at the glass type, frame and edges first, because film choice depends on how the glass is held.
NorthGuard comes to you in Kensington Market, Leslieville, Roncesvalles and Parkdale: neighbourhoods known for main-street shopfronts with street-level glass. Mobile service covers the rest of Toronto and the GTA, with no showroom.
Madico Nova 70, our premium option
Madico Nova 70 is our premium option for sun and heat, a different job from Silver 40 4mil: Madico lists Nova 70 at 68% visible light transmitted, with 46% of total solar energy rejected.
The Nova promotion (ends December 31, 2026): 30% off supplied and installed, from 50 sq ft of glass.
See Nova 70, our premium optionMore Silver reflective solar and clear films from NorthGuard
NorthGuard also installs the other films in this Madico range, and each one has its own page.
All Madico films NorthGuard installsSafety window film in Toronto
Madico is a trademark of Madico, Inc. Warranty details on request. NorthGuard buys Madico film as a customer and is not a Madico dealer.