Reflective (Metallized) Films |
In simplest terms, metallizing
(vacuum coating) is a process whereby a metal (almost exclusively
aluminum) is applied as a layer (coating) onto a clear polyester film, to
which another layer of polyester film is laminated. The results are solar
control films that have varying levels of visible light transmission (VLT).
The lower the VLT, the higher the solar heat reduction. |
Performance
Characteristics |
Dark Silver
(R20) |
Medium Silver
(R35) |
Light
Silver
(R50) |
Solar Heat Reduction |
76% |
64% |
47% |
Total Solar Energy Rejected |
79% |
68% |
54% |
Glare Reduction |
83% |
69% |
48% |
Visible Light Transmitted |
15% |
27% |
47% |
Ultraviolet Radiation Rejected |
99% |
99% |
99% |
Emissivity |
.71 |
.73 |
.75 |
Solar Reflectance |
55% |
43% |
27%
|
Shading Coefficient |
.24 |
.36 |
.53
|
* All data shown as tested on 1/8" single pane annealed glass
|