3M Prestige 70

Window films reduce the amount of solar energy and visible light that enters a building. They can reduce cooling energy use and glare in spaces with windows.

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3M Prestige 70

The 3M Prestige 70 is a spectrally selective solar control film. With high visible transmittance and light/heat ratio, this film gives the window a clear appearance, while its spectrally selective properties reduce solar heat gains without compromising daylight transmission and views.

Hub Highlights:

Minimal impact on views due to high visible light transmission
Spectral selectivity provides a high (greater than 1) light/heat ratio
Rejects more than 45% of solar heat

Last Edited on: September 24, 2022

Type	Spectrally selective solar control
Solar Heat Gain Coefficient (SHGC)	0.51
Visible Transmittance (Tvis)	0.67
U-value (U, W/m2 K)	5.63
Light/heat ratio	1.32
Installation Procedure	Same as for standard film, with the following additional considerations: - Sealing of film edges may be recommended for applications on non-vertical glazing, or less than 10 miles from the sea - Installation may not be recommended during precipitation (rain, snow) or when exterior air temperature is expected to drop below freezing in the following 15 days
Operation and Maintenance (O&M) Procedures	Window film should be washed with cleaning agent for windows or mixture of soap and water and wiped using a soft cloth or clean synthetic sponge. No bristle brushes, abrasive cleaning materials, or ammonia-based products are recommended. Paper towels may produce microscopic scratches that damage the film over time.

Last Edited on: August 22, 2022

Sample Size	1
Operations and maintenance (O&M) costs	No significant O&M costs are anticipated if care is performed according to manufacturer recommendations.
Thermal comfort	See tables
Visual comfort	See tables
View - Haze (% Value)	0.5%
Safety	Not applicable
Aesthetic impact	Tint: clear. Diffusing: no. Reflective: no.
Potential for material damage due to UV radiation	0.46