Is RF paint effective for blocking 5G signals and improving Wi-Fi performance in residential spaces, and is it worth the investment compared to other networking solutions?

RF paint does work to block signals and can provide some improvement in Wi-Fi performance, but it's not as effective when scaled up from small-scale applications to entire homes. While the paint isn't complete "snake oil" and does provide measurable results, the cost-benefit analysis doesn't favor this solution for most users. A more practical and cost-effective approach would be investing in modern networking equipment, particularly routers and devices that support 6 GHz frequencies. This is especially beneficial in apartment settings where using less congested frequency bands provides better performance than signal blocking. For the same money spent on RF paint and home renovation, users could upgrade their entire network infrastructure and family devices. The testing confirmed that while RF paint works on a technical level, upgrading internal networking equipment offers better value and performance improvements for most residential applications.