What is the risk of thermal shock on double glazed windows?

Despite the comic replies this product is not intended to be used on the internal face of sealed unit double glazing and may cause glass failure due to heat reflected into the sealed unit which can't escape. No mention of this made in the item description on Amazon and I only found this after my order was delivered and I checked on the suppliers web site. Even there it's in small download note at the end. They also sell external fit film to avoid thermal shock specifically for sealed unit double glazing which should be clearly stated on Amazon.

does this film block out any light? we have quite a small bedroom that already does not get alot of light so do not want to risk blocking out any more

Yes it does block out a small percentage of the light depending on the depth of tint. It is noticeable but we felt it was a fair trade to stop neighbours overlooking us being able to look straight into the bedroom.

I need this to block all vision into a room and look like a mirror from outside. visibility from inside can also be blank.

This blocks people seeing in from the outside in daylight only but you can see out. When it gets dark and you have lights on people can see in. It looks mirrored from the outside. Great for privacy in daylight hours but blinds or curtains for nighttime.

When applied to the outside glass, will it stay put in wind/rain? When removed, does it leave a residue on the glass?

Yes we put it on the outside face and had plenty of wind and rain stayed on no problem. We did not take it off so can't help with the residue

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76cm x 1 Metre - Silver Reflective Window Film (Solar Control & Privacy Tint - One Way Mirror/Mirrored Glass)

76cm x 1 Metre - Silver Reflective Window Film (Solar Control & Privacy Tint - One Way Mirror/Mirrored Glass)

Product ID: 51170243

Details

Brand
Active Window
Colour
Reflective
Installation type
Peel Stick
Manufacturer
Active Window
Material
Polyethylene
Number of items
1

📏76cm x 1m roll size

🪟One-way mirror daytime privacy

🛡️80%+ UV & heat blocked

€ 45.71

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🪞 Reflect your style, block the heat, own your privacy.

DIY READY ROLL - Self-adhesive, peel-and-stick film with full UK support—no messy glue, no hassle.
SUN SMART SHIELD - Slash solar heat & glare by over 80% for cooler, glare-free spaces.
LONG LASTING QUALITY - Durable PET material with a 10-year warranty ensures style and function that lasts.
SLEEK SILVER PRIVACY - Daytime one-way mirror effect keeps prying eyes out while you enjoy the view.
VERSATILE APPLICATION - Perfect for homes, offices, cars, and shops—upgrade any window in minutes.

This premium 76cm x 1m silver reflective window film offers professional-grade solar control by blocking over 80% of UV rays and heat, while delivering a sleek one-way mirror effect for daytime privacy. Easy to install with self-adhesive backing and supported by detailed UK-based instructions, it’s ideal for enhancing homes, offices, and vehicles. Crafted from durable PET material and backed by a 10-year warranty, it’s the smart, stylish upgrade for modern spaces craving comfort and discretion.

Specifications

ASIN	B00GC9ADYG
Best Sellers Rank	32,082 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 78 in Window Films
Brand Name	Active Window Films
Colour	Reflective Mirror Silver
Customer Reviews	4.0 4.0 out of 5 stars (3,163)
Installation Type	Peel, Stick
Item Dimensions L x W	76L x 1W centimetres
Item Type Name	Reflected window film
Item Weight	240 g
Manufacturer	Active Window Films
Manufacturer Part Number	5053499401303
Manufacturer Warranty Description	10 year.
Material Type	Polyethylene Terephthalate (PET)
Number of Items	1
Size	76cm x 1 metre
Ultraviolet Light Protection	True
Unit Count	1.0 count

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