Exploring RF-Shielded Products and Their Applications

While many security and facility managers invest in physical security solutions to safeguard their people and property, digital theft is another threat that should not be overlooked. The likes of hacking, wiretapping and electronic eavesdropping are all serious threats to a business or entity – and your office’s systems could be easily infiltrated simply by just having and using electronic items in the workspace.

The good news is that there are convenient ways to prevent digital data theft, and these solutions all work by containing the frequencies emitted by said electronics. In this post, we’ll take a closer look at how shielding works and the products to help safeguard your space. Read on to learn more:

How RF Shielding Works

Phones. Routers. Computers. Recorders. Bluetooth devices.

These are all examples of electronic devices in an office setting that emit frequencies. In a perfect world, these frequencies stay confined to the specific office or building that they’re generated in, but that’s not always the case. In some situations, these frequencies can extend far beyond the walls of a building and right into the lap of third parties with ill intentions. When this occurs, systems may be compromised, data may be stolen, and your company’s reputation could be in jeopardy.

Electronic eavesdropping has the potential to be devastating to a company or firm. Intellectual property and trade secrets may be compromised. If a government entity is infiltrated, it could result in a national security matter. That’s why RF shielding and RF shielding products are so important for at-risk organizations. Think medical centers, law enforcement agencies, government entities, schools, universities, and more. RF blocking products are designed to ensure that any frequencies stay within a particular building, thereby preventing the risk of any eavesdropping.

When it comes to safeguarding your building from electronic eavesdropping and data theft, the good news is that there’s no shortage of products to help get the job done. Here’s a look at some of the products that Signals Defense offers:


One of the most popular products to safeguard property from electronic eavesdropping, RF window films are designed to be installed onto the exterior facing windows of a building.

Shielding films from Signals Defense meet stringent U.S. intelligence community requirements and are available in many different varieties. The SD2500, for example, is a 2-mil thick RF/IR attenuating film. The SD2510 is a bit thicker at 10-mil and offers glass fragmentation control in addition to RF/IR attenuation. Other films, such as the SD2510 and SD1010, take physical security a bit further. In addition to offering industry-leading RF/IR protection, these films also offer protection against forced entry, natural disasters, and other blast events.

Another nice thing about RF shielding films is that you can’t even tell they’re there when installed correctly. Additionally, films can be decorative to match the aesthetic of any office. Films may also offer solar protection to help a building save energy, reduce glare, and prevent the fading of furniture and carpeting.


RF foils by rFoil™ are ideal for sensitive compartmented information facilities, or SCIFs. Commonly installed on walls, ceilings and floors, rf foils are designed to meet the Department of Defense’s standards and block EM and RF signals from passing through any type of solid barrier. What’s more, they can be used in conjunction with RF paint and other products to further enhance building protection.

Paints and Paper

Films and foils aren’t the only RF shielding products available to help protect buildings from electronic eavesdropping – there are a variety of other building materials that can help as well.

Signals Defense’s EMCoat paint is an electrically conductive, RF-blocking paint designed to take data protection to an even higher level. This paint can even be used as an alternative to foils, notably in data centers, conference rooms or any other sensitive area.

RF/IR wallpaper is another alternative to shielding foils. It can be applied to any flat surface in a room or building. Unlike foil, shielding wallpaper doesn’t stand out or look suspicious where it’s installed, offering discrete protection.


Signals Defense’s EMCaulk is like any other caulk, except that it offers shielding properties and reliable protection, especially when it’s used in conjunction with foils and other RF/IR shielding products. A cost-effective shielding solution, EMCaulk is an acrylic latex caulk designed to seal everywhere conventional caulk is used. Once applied, it forms an airtight seal to help provide electromagnetic protection.

Contact Signals Defense Today

For more information on how to safeguard your building from electronic eavesdropping and the range of effective solutions available, contact Signals Defense today.