EMF / RF Measurement and Mitigation Specialists
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Signal Protect - Silver Film
Product #: SLT-1052

Silver / Reflective Radio Frequency Signal Protect Window Film - Silver tinted RF shielding window film / glass shielding to block a wide range of radio frequency and microwave radiation - 10 Year Warranty!
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Sold per linear ft in 3, 4 or 5 ft widths @ 5 ft increments (1 Continuous Piece)

Min Qty = 5 linear ft  or (5 feet length X roll width)

Signal Protect Silver, formerly SLTWF3 provides optimum Solar Energy Rejection and Radio Frequency Blocking power and keeps your building safe, new and cool. This film is a silver tinted, reflective film which ensures a comfortable and temperate indoor environment and adds to the appearance of your building


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. 


Signal Protect Silver provides extraordinary solar heat protection which contributes to energy savings, preservation of décor and enhancement of building value


  • Best glare reduction and privacy
  • RF shielding performance 99.99 %
  • High reflectivity silver finish
  • Provides security from breaking glass
  • Excellent solar heat control blocking 76 % of total solar energy
  • Lowers summer time cooling expenses
  • Blocks +99 % of Ultraviolet “UV” rays
  • Blocks +90 % of Infrared “IR” rays
  • Provides a deterrent to premature skin aging and some potential skin cancers
  • Provides privacy, RF and IR Eavesdropping protection, and security for wireless networks
  • Suitable for Government Agencies
  • Application: Self adhesive, activated by water
  • 10 Year Warranty

Trusted by EMF Professionals throughout the Globe
Supplied With:
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)

Full Rolls are 100 ft long

SLT Name

Clear Glass

Signal Protect Silver - SLTWF3








1/8 Inch Clear

2 mil




RF Power Attenuation



Blocking Power @ 1 GHz

0 dB   0 %

-37 dB    99.98 %

Blocking Power @ 2 GHz

0 dB   0 %

-27 dB    99.8 %

Blocking Power @ 10 GHz

0 dB   0 %

-30 dB    99.9 %




% IR Light Blocked



% UV Light Blocked



Total Solar Energy Rejected






Visible Light



% Transmittance

90 - High

22 - Low

% Reflectance Exterior

9 - Low

45 - High

% Reflectance Interior

9 - Low

43 - High




Available Widths


3, 4 and 5 feet

Minimum lengths


5 feet

Additional length increments


5 feet

Cutting and rolling fees


$15.00 CAD

Conversion  1 m² = 10.76 ft²






Window Film Silver Spec. Sheet
Shielding Results for Signal Protect Silver for various frequencies.
Procedure for installing Clear or Silver window film.
Window Film Installation Video