Solar Gard Sterling Window Film
Spectrally selective film that rejects solar heat while keeping rooms bright, with a soft, neutral finish from outside.
- Up to 62%Solar energy rejected
- Up to 74%Visible light let in
- >99%UV blocked
What Is Sterling?
Sterling is a spectrally selective film series. It keeps out a good share of the sun’s heat while letting in a high level of natural light, so rooms feel cooler without feeling dark.
The range runs from Sterling 70, which is lightly tinted and hard to notice from inside, to Sterling 40, which gives more heat, glare and privacy control.
Sterling has a soft, neutral reflective finish from outside. The darker shades are more reflective, which also adds some daytime privacy.
Warranty: Solar Gard manufacturer warranty, terms confirmed in your quote.
Great for
- Offices and homes that want bright rooms
- Larger commercial glazing
- Rooms with moderate sun and glare
- Some daytime privacy with Sterling 40
Think twice if
- You want zero reflection from outside
- Your strata restricts reflective film
- You need maximum heat rejection
Sterling Specifications
All 4 shades compared side by side. Lower VLT means a darker film; higher TSER means more heat rejected.
| Specification | Sterling 40 | Sterling 50 | Sterling 60 | Sterling 70 |
|---|---|---|---|---|
| Visible light transmittance (VLT) | 41% | 49% | 63% | 74% |
| Visible light reflectance, exterior | 32% | 25% | 17% | 13% |
| Visible light reflectance, interior | 30% | 24% | 16% | 12% |
| Total solar energy rejected (TSER) | 62% | 56% | 44% | 36% |
| Solar heat gain coefficient (SHGC) | 0.38 | 0.44 | 0.56 | 0.64 |
| UV light blocked (300 to 380 nm) | >99% | >99% | >99% | >99% |
| Glare reduction* | 54% | 45% | 29% | 17% |
| Fade reduction | 61% | 55% | 45% | 37% |
Source: Solar Gard official product data. Results calculated using NFRC methodology and LBNL Window software on 6mm clear glass, subject to normal manufacturing variances and intended for estimating purposes. *Glare reduction calculated against untreated 6mm clear glass.
Which Sterling Shade Is Right For You?
Sterling 70
74% VLT and 36% heat rejection. Barely noticeable from inside, ideal for keeping daylight.
Sterling 60
63% VLT and 44% heat rejection with 17% exterior reflectance.
Sterling 50
49% VLT and 56% heat rejection. A balanced choice for living areas and offices.
Sterling 40
41% VLT and 62% heat rejection, with 32% exterior reflectance for added daytime privacy.
Estimate Your Savings With Sterling
Use our free calculator to estimate heat reduction, glare reduction and cooling savings for your home with Sterling.
Sterling vs Stainless Steel
Both are neutral-looking films. Sterling lets in more light for similar heat rejection, for example Sterling 40 lets in 41% of light and rejects 62% of heat, while Stainless Steel 20 lets in 23% and rejects 61%.
Stainless Steel is darker and has lower reflectance at each level, so it suits rooms that need more glare control.
Compare With Stainless SteelSterling FAQs
Is Sterling reflective?
Moderately. Exterior reflectance ranges from 13% on Sterling 70 to 32% on Sterling 40. The lighter shades look close to clear glass.
Which Sterling shade gives privacy?
Sterling 40 gives the most daytime privacy thanks to its higher reflectance. Like all films, privacy reverses at night when it is brighter inside.
Is Sterling good for offices?
Yes. It keeps workspaces bright, which reduces the need for lighting, while cutting solar heat and UV.
How long does Sterling last?
Sterling comes with a Solar Gard manufacturer warranty when professionally installed. We confirm the warranty terms in your quote.
Get A Free Sterling Quote
Send us your glass sizes and we’ll recommend the right Sterling shade.