EMF Shielding Paint can be one of the most effective ways of blocking EMFs. It is usually black because it is a combination of carbon and graphite particles and because it is conductive, it should be grounded first. The higher protection you need the more coats of paint you need to apply for better results. EMF shielding paint protects against 5G, Wi-Fi, and other wireless signals. It also protects against low-frequency electric fields (LF) caused by things like electrical wiring. Applied in layers the efficiency can be built up gradually and you can easily paint over it with the regular paint of your choice, even white!