EMF Shielding By The Foot

Description

The Same Shielding — Your Own Application

🛡 Signature Shielding Technology — ELF + RF in One Layer

DefenderShield’s Signature Shielding uses nanotechnology to incorporate metals into a single laminated layer. That layer blocks two categories of electromagnetic radiation: Extremely Low Frequency (ELF) emissions from batteries and power sources (up to 98% attenuation), and wireless Radio Frequency (RF) emissions up to 40 GHz (up to 99% attenuation). The RF coverage spans WiFi, Bluetooth, cellular signals, and low- to mid-band 5G. This is the same core shielding technology used across DefenderShield’s product lineup — now sold as raw material for custom projects.

Sold by the Foot — Cut, Shape, and Install

✂️ 12” × 19” Per Unit — Continuous Roll for Larger Orders

Each unit is one linear foot: 12” long × 19” wide, weighing 1.34 oz. Order multiple units and they ship as a single continuous roll — three units arrive as one uncut piece of 36” × 19”, six units as 72” × 19”, and so on. The material can be cut with standard scissors or a utility knife to fit your application. No special tools required.

Custom Applications — Walls, Enclosures, and More

🏠 DIY Shielding for Home, Office, and Personal Use

The shielding material opens up applications that finished products cannot cover. Line the interior of a structured bag or laptop sleeve. Install it behind drywall, under flooring, or inside a room to reduce ambient wireless exposure from neighboring units, cell towers, or office equipment. Build a custom Faraday-style enclosure to block RF signals from reaching a specific area or device. The material is flexible enough to conform to curved surfaces and rigid enough to hold shape when mounted flat.

Independent Testing 

Figure (Left) DefenderShield Signature Shielding displays robust shielding across the extremely low frequency (ELF) domain with a signal percent attenuation 99.0%. (Right) DefenderShield Signature Shielding maintains robust shielding across the complete radio frequency (RF) domain with a signal percent attenuation 99.0%. The signal percent attenuation (%) is the linear transformation of the logarithmic shielding effectiveness (SE) (dB) values.

How to use

Working with the Material

1. Order the quantity you need. Each unit is one linear foot (12” × 19”). Calculate the total area you need to cover and order enough units to cover it. Multiple units arrive as a single continuous roll.

2. Cut to size. Use standard scissors or a utility knife to cut the material to your dimensions. Mark your cuts before cutting — the material cannot be spliced back together after cutting. However, it is still effective with overlap between the cut pieces.

3. Position the shielding. Place the material between the EMF source and the body area or space you want to shield. The shielding works when it sits between you and the source of radiation. For pre-wall installation, mount behind drywall or paneling with the shielding facing the radiation source. If you are adding to the surface of a finished wall, ensure proper adhesion to the painted or unpainted surface of the wall.4. Secure in place. Depending on your application, use adhesive to hold the material in position. Be mindful of creating holes in the material with staples or pins because emissions can leak through. The laminated surface accepts most standard adhesives.

Common Applications

• Device shielding: Line the interior of a phone pouch, laptop bag, or tablet sleeve to add ELF and RF shielding to an existing case or carrier.

• Room shielding: Install behind walls or under flooring to reduce ambient wireless radiation entering a room from neighboring spaces, outdoor cell towers, or shared building infrastructure.

• Faraday enclosures: Build a custom enclosure that blocks RF signals from reaching a specific device or area — useful for cybersecurity, signal isolation, or privacy.

Important Notes

• The material blocks ELF and RF only when it sits between the radiation source and the area you are protecting. Gaps, holes, seams, or openings in the shielding reduce effectiveness.

• For full 360° signal blocking (Faraday-style), the enclosure must be fully sealed with overlapping material and no gaps. A single pinpoint opening allows RF signals to pass through.

• This material blocks signals in both directions. If you enclose a device (e.g., a phone inside a custom-built Faraday box), the device will lose all connectivity — no calls, texts, WiFi, Bluetooth, or GPS.

• Do not wash the shielding material. Clean the surface with a dry cloth only. Submerging in water or machine washing will degrade the laminated shielding layer.

Specifications