Why does the film not stick to the window? / Why did the film fall off from the window a few hours later?

There is a clear "backing liner" layer attached to the actual "film" layer. The backing liner covers the adhesive on the film so that the film does not prematurely stick. When you install the film, the backing liner needs to be peeled off from it.

Can people see in at night? / Why is the interior visible from outside during nighttime?

If lights are on inside, the interior will be visible at night because it is brighter. Curtains or blinds can be closed at nighttime to block view. (During daytime, you can see out while having privacy from outside due to the sunlight outside.)

Why does the window feel warmer after the film has been installed?

This is an expected result. The window with the film installed feels warmer because the film stops some of the heat. If the film is not there, the heat felt on the window would instead enter the room.

Why did bubbles (or spots where film is not adhering properly) form after the film was installed?

This is due to the moisture left inside. The film may appear fine when installed, but afterwards, the water can interfere with the adhesive and cause bubbles to form. Apply firm pressure with the squeegee and push out the water to prevent bubbles.

Can this film be used on dual pane windows?

This film is not recommended for dual pane windows due to the higher heat absorption rate. This can build up heat between the panes, which would stress the window. (Heat absorption is different from heat blocking rate.)

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BDF NA20 Window Film Daytime Privacy and Sun Control Natural Black 20 (Dark) - 36in X 50ft

BDF NA20 Window Film Daytime Privacy and Sun Control Natural Black 20 (Dark) - 36in X 50ft

Product ID: 70699168

Details

Brand
Color
Black
Installation Type
Peel & Stick
Manufacturer
Material
Polyethylene
Number of Items
1

🔒Daytime Privacy

🔥Excellent Heat Rejection

🕶️99% UV Block

¥47004

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Description

🕶️ Stay cool, stay private, stay ahead.

CUT COOLING COSTS - Superior heat rejection slashes your AC bills during scorching summers.
UV DEFENSE SHIELD - Blocks 99% of harmful UV rays to protect your interiors from fading and damage.
PREMIUM QUALITY FILM - Crafted from durable PET material with a strong adhesive for long-lasting performance.
ULTIMATE DAYTIME PRIVACY - Natural black tint keeps prying eyes out while you stay connected to the outside world.
DIY FRIENDLY INSTALLATION - Comes with free tools and a step-by-step guide for a flawless peel & stick setup.

The BDF NA20 Window Film offers a sleek natural black finish that ensures excellent daytime privacy without sacrificing natural light. Designed for single-pane windows, it effectively blocks 99% of UV rays and reduces heat transfer to lower cooling costs. Made from high-quality PET material with a strong adhesive, it includes free installation tools and a guide for easy DIY application, making it a smart upgrade for modern homes and offices.

Specifications

ASIN	B00FQNO69W
Best Sellers Rank	#79,320 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #138 in Window Films
Brand Name	Buydecorativefilm
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (1,456)
Installation Type	Peel & Stick
Item Dimensions L x W	600"L x 36"W
Item Weight	16 ounces
Manufacturer	Buydecorativefilm™
Manufacturer Part Number	CSRNA2012100
Material Type	Polyethylene Terephthalate (PET)
Model Number	NA20
Number of Items	1
Size	36in X 50ft
UPC	810203021869
Ultraviolet Light Protection	Yes
Unit Count	150 Square Feet

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥47004

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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