Signal Protect Clear RF Shielding Window Film
Signal Protect Clear RF Shielding Window Film Interior
Signal Protect Clear RF Shielding Window Film Interior
Signal Protect Clear RF Shielding Window Film Interior
Signal Protect Clear RF Shielding Window Film Interior
Signal Protect Clear RF Shielding Window Film Interior
What is a Linear Foot?

Signal Protect – Clear Film

(11 customer reviews)


Virtually Clear Radio Frequency Signal Protect Window Film

Installation should not commence if glass temperature drops below 40 degrees Fahrenheit or 5 degrees Celsius.

*Does Not Include Free Shipping*

Product Manuals


Signal Protect – Clear RF Shielding Window Film 

EMF Shielding Window Film

Virtually Clear Radio Frequency Signal Protect Window Film – our most transparent RF window shielding / glass shielding to block a wide range of radio frequency and microwave radiation.

This product offers light transmission of 72%.

The ultimate protector that provides an unaltered view of the outdoors while keeping your home naturally cool, new, bright, and enhance its value.

Trusted by EMF Professionals throughout the globe.

Includes a 10 Year Warranty.

RF Shielding Window Film

Signal Protect Clear, formerly SLTWF1 is the key to high performance windows and keeps your building safe, new and cool.

This film is virtually undetectable on your windows but provides a Radio Frequency barrier as well as keeping your home cooler and more comfortable while protecting your décor.

Designed to block analogue and pulsed digital signals for external sources such as microwave transmitters, cell phone towers, neighbours cordless telephones and Wi-Fi signals.


  • Best light transmission 72 %
  • RF shielding performance 99.99 %
  • Low reflectivity maintains the original appearance of your glass
  • Not noticeable from the inside or outside
  • Provides security from breaking glass
  • Excellent solar heat control blocking 55 % of total solar energy
  • Lowers summer time cooling expenses
  • Blocks +99 % of Ultraviolet “UV” rays
  • Blocks +95 % of Infrared “IR” rays
  • Provides a partial deterrent to premature skin aging and some potential skin cancers
  • Provides privacy, RF Eavesdropping protection and IR Eavesdropping protection, and security for wireless networks
  • Suitable for Government Agencies
  • Application: Self adhesive, activated by water
  • 10 Year Warranty


Desired Amount of Window Film

Technical Data:

  • Sold per linear ft in 3, 4 or 5 ft widths @ 5 ft increments
  • Min Qty = 5 linear ft or (5 feet length X roll width) What is a Linear Foot?
  • Full Rolls are 100 ft long

Installation Weather Guidelines – Interior Film

The main concern with installing film at temperatures below freezing would be that any water left behind during installation would freeze and cause a visible defect in the film. Thus the best method for reducing any potential problems would be to take extra care to remove all excess water during installation. The only way that the water could potentially freeze would be if the temperature of the interior pane of glass dropped below 32 ̊F. Below are a few recommendations to look for when installing in cold temperatures.

As a general rule these guidelines would be recommended any time temperatures are expected to be under 10 ̊F for double pane glass or under 40 ̊F for single pane glass, within 72 hours of the installation period.

  1. Check the temperature of the interior pane of glass, with an understanding that the temperature of the glass will drop significantly at night. If the temperature of the interior pane is less than 40 ̊F do not install film.
  2. Spray the glass with film mounting solution if the mounting solution freezes do not install film.
  3. Use a temperature gun to determine the temperature of the frame of the window right next to the glass. Water left around the edges of the glass could freeze due to the frame
  4. Check to see if heating vents are directed at the glass and will hold that glass at a warmer temperature, often allowing film installation at significantly lower outside temperatures.
  5. Determine what temperature the building is kept at during the night. Often unoccupied spaces, or spaces being renovated will be kept at much lower temperature, as are some buildings that utilize temperature setbacks at night.

In general, there are very few days that would prohibit film installation in the US climate. The interior temperature of the building will typically hold the interior glass temperature above 32 ̊F. The above are situations to be aware of, as well as suggestions to minimize the risk of installing film in temperatures that are too low.

Signal Protect – Clear Film

Additional information

Weight 5 kg
Dimensions N/A

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RF Power Attenuation @ 1 GHz

RF Power Attenuation @ 2 GHz

RF Power Attenuation @ 10 GHz

% IR Light Blocked

% UV Light Blocked

Total Solar Energy Rejected

Visible Light - % Transmittance

Visible Light - % Reflectance Exterior

Visible Light - % Reflectance Interior

Available Widths

Minimum Lengths

Additional Length Increments



11 reviews for Signal Protect – Clear Film

  1. Anonymous (verified owner)

    good product

  2. Anonymous (verified owner)

    Product meet expectation

  3. Anonymous (verified owner)

    I am thrilled with this product. I got my car hard. THANKS…

    Je sui enchanter par ce produit. J’ai fait bander mon auto. Merci…

  4. Anonymous (verified owner)

    Took our room from 500-1000µW/m² range down to low 20µW/m², was very pleased.

  5. Anonymous (verified owner)

    it reduces EMF signals

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