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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Llumar DRN 35 SR CDF
The Llumar DRN 35 CDF is a conventional solar control film that reduces both glare and solar heat gains. It has a low/medium visible transmittance that provides a reasonable amount of glare protection.
Film not for self-install - i.e., for professional installation. Pre-installation: film may not be recommended depending on factors such as glazing and frame types of existing window, presence of pre-existing film or certain coatings that reduce adhesion, presence of overhangs or other exterior shading. Film installation should not take place in very cold or dusty conditions. General installation procedure requires: cleaning of window and frame, cutting film to size, application of film to window (including multiple applications of water and detergent mix followed by squeegeeing), wiping dry. Post-installation: - Window not to be cleaned for a period of time, typically 30 days - Drying process takes weeks, during which small bubbles, haze, and other features may be visible; these should gradually resolve with time - It is normal for a 2-3 mm gap to be visible between the edge of the film and the gasket/frame For full details for any particular film product please consult with film installer prior to installation.
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.
