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We are now offering Buy with Prime for select sizes of certain items.
We are now offering Buy with Prime for select sizes of certain items.

BDF NA20 Window Film Daytime Privacy and Sun Control Black (Dark)

Original price $39.99 - Original price $339.99
Original price
$39.99 - $339.99
Current price $84.99
Size: 24in X 50ft
  • DARK, BLACK FINISH that provides excellent daytime privacy, making it hard for unwanted eyes to see through.
  • EXCELLENT HEAT REJECTION. Helps reduce cooling costs, especially during the summer through the effective blocking of harmful solar rays. NOT RECOMMENDED for DUAL PANE WINDOWS.
  • STRONG ADHESIVES to last many years. For easier installation, remember to use A LOT of soap/water mixture to soak both the adhesive side and window.
  • HIGH-QUALITY PERFORMANCE films are sensitive by nature. Please take caution when handling the film as the slightest fold will create a permanent wrinkle.
  • FREE TOOLS AND EASY INSTALLATION GUIDE to make installation DIY-friendly. Make sure the window surface is completely clean and absolutely free of any blemishes.
Download Installation Guide

Orders are generally processed by the next business day. After an order is processed, delivery normally takes up to 5 business days, depending on the location.

Shipping Policy

  • Start your installation with a smaller window if you are inexperienced.
  • Do not apply the film when the direct sunlight is on the window.
  • If your window is larger than 30" width, you may need assistance from 2nd hands.
  • Spray abundantly. A fully wet window & film is the key for successful installation.
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BDF Black Natural film - NA20

Buy Decorative Film's Natural 20 Daytime Privacy and Sun Control window film gives your window a classic, tinted look with its traditional, black shade. A little lighter in shade than our Natural 5 window film, the Natural 20 will allow more light to pass through but still offer high heat rejection and great daytime privacy. If you are looking for both high heat rejection and daytime privacy but something that is not extra dark, the Natural 20 can serve your needs. As this window film absorbs a lot of heat, it is not safe for dual-pane glass.


BDF NA20 has features to offer such as heat control, blocking UV rays, and daytime privacy. The dark black tint of the NA20 helps reduce glare. The number "20" in its name refers to the fact that it is rated to transmit about 25% of visible light. The NA20's black-tone gives it a heat-rejecting rate of up to 50% which keeps the interior of your home or office building nice and cool. Not recommended for dual pane windows.


The NA20 has the benefit of preventing onlookers outside from looking through your window while maintaining visibility from inside during the day. Its darkness makes it difficult for unwanted eyes to see what's happening inside. Daytime privacy means it will provide you perfect privacy until sunset time. Even with its dark property, the NA20 still will provide a daytime view out the window.


The effect of any daytime privacy window film will greatly depend on the lighting conditions, because the side exposed to more light will become more reflective and harder to see through. This is why the privacy effect works so well during the day, since the sun usually makes the exterior of your building much, much brighter than the interior. The use of curtains or blinds will be needed for nighttime privacy.


Good for homes and office buildings that are directly exposed to the sun which is the source of UV rays, the NA20 window film provides an excellent UV blocking barrier. Being exposed to UV rays can cause skin problems such as premature aging skin and signs of wrinkles as well as eye problems. The NA20 film rejects about 99% of the UV rays, helping to reduce fading on your precious furniture and pictures.

Natural Black Film Specifications

All data values below are representative, and expressed for comparison purposes only

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