What is BlocWiFi fabric?

BlocWiFi is an affordable, effective EMF protection material made of nickel, copper and polyester. It blocks the radio frequency signals from cell towers, smart meters, WiFi routers and other wireless devices.

How much shielding does BlocWiFi provide?

70 dB from 100 MHz to 3 GHz. Every 10 dB is a tenfold reduction in signal power, so 70 dB is a very large reduction in the signal passing through the fabric.

Does BlocWiFi block WiFi, cell and 5G signals?

BlocWiFi reduces and blocks emissions from cell towers, smart meters, WiFi routers and other wireless devices. Its published shielding of 70 dB from 100 MHz to 3 GHz covers cell signals and 2.4 GHz WiFi. Higher frequencies, such as 5 GHz WiFi and millimeter wave 5G, are outside that range. For published shielding up to 40 GHz, choose BlocSilver®, which provides 36 dB at 40 GHz.

Does BlocWiFi block RFID?

Yes. BlocWiFi is commonly used to secure against RFID fraud, and can be made into a shield case for ID cards, Bluetooth car keys and mobile phones.

Can I make a shield case with BlocWiFi?

Yes. BlocWiFi can be used as a shield case for mobile phones, Bluetooth car keys and identity cards.

Is BlocWiFi see-through or breathable?

No. BlocWiFi is not see-through or breathable. Its opacity makes it a good option for home or office windows.

Can I use BlocWiFi at a window?

Yes. Because it is opaque, BlocWiFi is a good option for blocking microwave radiation at home or office windows.

Can I use BlocWiFi as a bed mat?

Yes. BlocWiFi can be used as a bed mat, or placed in strategic areas for EMF protection. If you would rather buy a ready-made mat, see our EMF/RF bed mats.

Is BlocWiFi conductive?

Yes. BlocWiFi is conductive, so it can be used to create a Faraday cage.

How do I order a longer length?

Your order is cut as one continuous length, not as separate pieces. If you need a longer length, increase the quantity in your basket.

How much does BlocWiFi fabric cost?

BlocWiFi starts at $39.99 for a 3.25 ft (1 m) length (54 inches / 137 cm wide), and the price rises with the length you choose.

Yes, we accept returns within 30 days. See our returns policy for details.

Do you offer support?

Yes. If you are unsure how much fabric you need or how to use it, speak to an expert for free advice before you buy.

EMF Shielding Fabric

BlocWiFi EMF Protection Material 54″ Wide

Published shielding: 70 dB of shielding

Price range: $39.99 through $108.99

Free Standard shipping over $100
Free Express shipping over $250

BlocWiFi is an affordable, effective nickel, copper and polyester fabric that blocks the RF signals from cell towers, smart meters, WiFi routers and other wireless devices. It is opaque and conductive, so it works for windows, bed mats and RFID blocking.

70 dB of shielding from 100 MHz to 3 GHz
Solid, opaque weave, so it also works at windows (not breathable)
Conductive, for bed mats, Faraday projects and RFID-blocking cases

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Speak to an expert first

30-day returns
Free US shipping over $100
Shielding specialists since 2004
Free advice before you buy

BlocWiFi Nickel and Copper Fabric: 70 dB From 100 MHz to 3 GHz

BlocWiFi is an affordable and effective EMF protection material made of nickel, copper and polyester. It helps shield your home against the radiation from cell towers, smart meters, WiFi routers and other wireless devices, with 70 dB of shielding from 100 MHz to 3 GHz. It is not see-through or breathable. Browse our full range of EMF shielding fabrics to compare options.

RFID Blocking Fabric

BlocWiFi is commonly used to secure against radio-frequency identification (RFID) fraud. It can also be made into a shield case for mobile phones, Bluetooth car keys and ID cards.

Solid, Opaque Weave for Windows

Because BlocWiFi is not see-through, it is a good option for home or office windows, where it blocks microwave radiation and helps minimize EMF in any room. Its solid weave also makes it suitable for shielding while you work with a laptop or tablet.

Make a Bed Mat or Faraday Cage

BlocWiFi is conductive, so it is an excellent material for creating a Faraday cage and shielding radiation in many ways. It can be used as a bed mat or placed in strategic areas for EMF protection, and it can be used to ground beds. If you would rather buy a ready-made mat, see our EMF/RF bed mats.

Sold by the Length

BlocWiFi is 54 inches (137 cm) wide and sold in 3.25 ft (1 m), 5 ft (1.5 m) and 10 ft (3 m) lengths. Your order is cut as one continuous length, so if you need a longer length, increase the quantity in your basket. Not sure which fabric is right for you? Try our sample pack of four.

BlocWiFi or Another Fabric?

BlocWiFi is a solid weave fabric, so it is not breathable. If you need a lightweight, breathable fabric, see BlocSilver®. If you prefer a copper color to silver, BlocCopper is the same fabric in a copper color.

Size: 3.25ft, 5ft, 10ft

Specification	Details
Fabric	BlocWiFi EMF protection material
Composition	Nickel, copper and polyester
Width	54 inches (137 cm)
Lengths	3.25 ft (1 m), 5 ft (1.5 m) or 10 ft (3 m); increase the quantity for a longer length, cut as one continuous piece
Shielding	70 dB from 100 MHz to 3 GHz
Appearance	Opaque (not see-through)
Color	Silver
Breathability	Not breathable
Conductivity	Conductive; can be used to create a Faraday cage
RFID	Blocks RFID scanning
Best uses	RFID-blocking cases, window shielding, bed mats, Faraday projects