What Materials Block Radio Waves Most Effectively?

In order to protect yourself against EMF radiation, you may have wondered what materials block radio waves most effectively. We have answers on what to look for, and what to know about better protection.

EMF Radiation

No matter what kind of device you own, they all emit magnetic and electrical energy via radiation or conduction. Some, as you know, are negative influences on your health. In fact, according to MatMatch,

Electromagnetic interference and radiation can have consequences that range from audio/video signal disturbance to loss of life, particularly when EMI influences the operation of critical devices such as life support machines or military assets designed for electronic warfare.

Now this applies to EMI influences. But EMF radiation is a concern that is as important to our health.

What Materials Block Waves Most Effectively?

There are a few materials that work to help block waves, and should be looked into when buying blocking materials for your devices and home.

Copper

The material that works the best, according to scientists, is copper. The reason it works well to shield radio frequencies is twofold – it is effective at absorbing radio waves, as well as magnetic waves. It has another pro, and that is that it is effective at attenuating both electrical waves and magnetic waves. In fact, research shows that copper has a lot of properties that people find helpful for their health in other ways, as well as blocking waves.

Pre-Tin Plated Steel and Carbon Steel

Both of these materials work at low frequency protection. These are frequencies from the kHz range, and up to the lower GHz range. If you’re looking for an inexpensive solution, pre-tin plated steel is your best bet. The carbon steel is not as inexpensive but provides a solution for low-frequency magnetic shielding. Its permeability value is in the low hundreds variable. This gives it a shielding benefit you cannot find in aluminum, copper, and alloy 770.

Alloy 770

Also known as copper alloy 770, it is resistant to corrosion. The mix is alloys of zinc, nickel, and copper, and is often used for a variety of shielding products and applications.

Choosing the Best

Radio waves are everywhere. But by choosing these products, you may be able to mitigate some of the exposure and harmful effects.