How does RF blocking paint work and what are its practical effects on home wireless networks?

RF blocking paint, specifically the RFIE50 from Warmore, works through its high concentration of graphite content. Once applied and dried, this graphite-rich paint effectively blocks almost all radio frequency (RF) signals commonly found in typical homes, creating a barrier to wireless communications. The practical application requires significant investment - around $3,000 to treat an apartment - but delivers genuine RF blocking capabilities, distinguishing it from pseudoscience products. However, users must be strategic about placement, as painting walls between routers and devices would block desired WiFi signals along with unwanted interference. The paint's effectiveness in blocking RF frequencies makes it a legitimate solution for managing wireless interference, though proper planning is essential to avoid disrupting intended network connectivity throughout the home.