Solar Gard 4 Mil Clear Safety Window Film — Entry-Level Glass Protection
Solar Gard 4 Mil Clear Safety Film is a transparent polyester film designed to hold glass fragments together on impact. It provides a baseline level of safety glazing protection for residential and light-commercial applications without altering the appearance of the glass.
Key Benefits
- Fragment retention — bonds to the glass surface so that shattered panes stay in the frame rather than scattering dangerous shards.
- Optically clear — the film is virtually invisible once installed, preserving natural light and views.
- UV filtering — blocks up to 99% of UV radiation, helping protect interiors from fading.
- Cost-effective safety upgrade — an affordable way to improve the safety characteristics of existing annealed glass without full window replacement.
- Scratch-resistant coating — a hard-coat layer helps resist surface abrasion during cleaning and daily use.
Ideal Applications
- Residential windows and sliding glass doors — especially in homes with children or pets
- Shower enclosures and interior glass partitions
- Retail storefronts seeking basic smash-and-grab deterrence
- Schools and daycare facilities upgrading to safety-glazing standards
Buyer Guidance
At 4 mil thickness, this film meets basic safety-glazing requirements under many building codes but is not intended for blast-mitigation or forced-entry resistance. For higher-security applications, consider the 7 Mil or 8 Mil clear films. Supplied as uncut rolls by The Window Place USA; professional installation with an anchoring system is recommended for maximum fragment retention.
Available Sizes
Available in 36″, 48″ and 60″ widths, each in 50-foot and 100-foot roll lengths.
Performance Specifications — 4 Mil Clear Safety Film
| Specification | 4 Mil Clear |
|---|---|
| Visible Light Transmittance (VLT) | 88% |
| Visible Light Reflectance (Ext/Int) | 9% |
| Solar Heat Gain Coefficient (SHGC) | 0.79 |
| Total Solar Energy Rejected (TSER) | 21% |
| UV Light Blocked (300–380nm) | >99% |
| Fade Reduction | 23% |
| Film Thickness | 4 mil (100 micron) |
| Break Strength | 22 kg/cm |
| Puncture Resistance (ASTM D4830) | 32 kg |
Performance data sourced from Solar Gard Armorcoat product documentation. Tested on 1/4" (6mm) clear glass per NFRC methodology. Actual in-field results can vary by glass type, orientation and installation conditions.
Frequently Asked Questions
1. Does 4 mil film make glass unbreakable?
No. The glass will still break on impact, but the film holds the fragments in place, reducing the risk of injury from flying shards.
2. Is 4 mil thick enough for security purposes?
It provides basic safety glazing. For enhanced security against forced entry or severe weather, upgrade to 7 Mil or 8 Mil clear film.
3. Will the film change how my windows look?
No. The film is optically clear and virtually undetectable once professionally installed.
4. Does The Window Place USA install safety film?
No. We supply Solar Gard film nationwide. A professional installer should apply safety film and, where required, install a mechanical anchoring system to the window frame.
5. Does this film help with UV protection?
Yes. Even at near-full clarity, the film blocks up to 99% of UV radiation, helping to slow fading of furniture, artwork and flooring.
