Prestige - PR 40
3M Prestige window films incorporate features
that increase on-angle heat rejection to help keep you cool
Stay warmer by retaining more heat in cooler months
Extends the life of furnishings by rejecting UV rays,
the single largest component of fading
Increases personal safety by minimizing flying glass
Low reflection enhances views and overall beauty
Stay cooler by reducing excessive heat in warmer months
Prestige 40 is comprised of over 200 ultra-thin layers, and is manufactured utilizing 3M's patented nanotechnology process.
Light transmission values on various glass substrates
Prestige 40 is comprised of over 200 ultra-thin layers, and is manufactured utilizing 3M's patented nanotechnology process. Nanotechnology creates unique clusters of nanometer-sized particles that provide superior heat control and glare reduction while preserving exterior and interior window views.
Colourless in appearance, this film provides excellent energy savings performance. This is the darkest version with visible light transmission properties of 40%.
Prestige PR 40
Product Performance
| Prestige 40 | Single Pane | Single Pane/Tinted | Double Pane | Double Pane/Tinted |
 |  |  |  | |
| Solar Heat Reduction | 50% | 41% | 27% | 24% |
| Heat Loss Reduction | 3% | 3% | 0% | 0% |
| Glare Reduction | 56% | 57% | 58% | 56% |
| UV Blocked | 99% | 99% | 99% | 99% |
| Total Solar Energy Rejected | 59% | 63% | 49% | 61% |
Technical Data
Glass Type | Applied Product | Shading Coefficient | Visible Light | Emissivity | "U" Value | |
Reflected | Transmitted | |||||
| None | 0.94 | 8% | 88% | 0.84 | 1.06 |
PR-40 | 0.47 | 6% | 39% | 0.78 | .99 | |
 | None | 0.69 | 5% | 50% | 0.84 | 1.06 |
PR-40 | 0.43 | 6% | 23% | 0.78 | .99 | |
 | None | 0.64 | 14% | 78% | 0.84 | 0.50 |
PR-40 | 0.59 | 6% | 35% | 0.78 | 0.47 | |
 | None | 0.55 | 8% | 45% | 0.84 | 0.50 |
PR-40 | 0.45 | 7% | 21% | 0.78 | 0.47 | |