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The claim that paint can suppress 4G radiation is nonsense. Did you also paint the doors, windows, ceiling and floor? If you want further information, talk to

The claim that paint can suppress 4G radiation is nonsense. Did you also paint the doors, windows, ceiling and floor? If you want further information, talk to the people who build shielded rooms. Cutting down EM radiation by more than a few db is incredibly difficult.

LinuxBender 5y ago
Just slapping on a coat of the stuff would not work, but doing it correctly absolutely does work. It takes a few coats and you have to ground it. Done correctly, you won't be able to use Wifi or make a phone call. Yes you will get some leakage from windows, but that can be attenuated with metal screens or use steel roll-down shutters that have the benefit of improving the R/U insulation rating of the windows at night and improving physical security. I have tested this in two houses. I will also be adding the paint to a property I recently acquired. If you bookmark this thread, I will circle back in about six months after the snow to test the attenuation.
- swader999 5y ago
  I think I do get leakage through the one window that has the film and the metal bug screen. The paint when grounded is very good shielding. You are describing all the right aspects of this!
- Johnythree 5y ago
  If you don't block all the holes, it can't possibly work. Plus you can't effectively earth something when your earth leads is multiple wavelengths long (eg at UHF)
swader999 5y ago
Yes everything except the floor. The tower is above the floor. For widows I used the film and a metal bug screen on top of that. I did three coats of the YSheild HSF54 paint. The before and after ratings on my meter prove to me that it worked. I register less than background now in that room.I used the copper grounding strips that wire into my outlets and attach to the house ground circuit.
- Johnythree 5y ago
  Certainly you can get a few db attenuation, but it's absolutely not possible to block all EM radiation with a cheap layer of paint. Regarding "not treating the the floor", how to you prevent reflections? If there's any metal beneath the floor it will reflect the signals into the room. Whatever, if your meter is reading "less than background" then it is clearly misleading you.

LinuxBender 5y ago

Just slapping on a coat of the stuff would not work, but doing it correctly absolutely does work. It takes a few coats and you have to ground it. Done correctly, you won't be able to use Wifi or make a phone call. Yes you will get some leakage from windows, but that can be attenuated with metal screens or use steel roll-down shutters that have the benefit of improving the R/U insulation rating of the windows at night and improving physical security. I have tested this in two houses. I will also be adding the paint to a property I recently acquired. If you bookmark this thread, I will circle back in about six months after the snow to test the attenuation.

swader999 5y ago
I think I do get leakage through the one window that has the film and the metal bug screen. The paint when grounded is very good shielding. You are describing all the right aspects of this!
Johnythree 5y ago
If you don't block all the holes, it can't possibly work. Plus you can't effectively earth something when your earth leads is multiple wavelengths long (eg at UHF)

swader999 5y ago

Yes everything except the floor. The tower is above the floor. For widows I used the film and a metal bug screen on top of that. I did three coats of the YSheild HSF54 paint. The before and after ratings on my meter prove to me that it worked. I register less than background now in that room.I used the copper grounding strips that wire into my outlets and attach to the house ground circuit.

Johnythree 5y ago
Certainly you can get a few db attenuation, but it's absolutely not possible to block all EM radiation with a cheap layer of paint. Regarding "not treating the the floor", how to you prevent reflections? If there's any metal beneath the floor it will reflect the signals into the room. Whatever, if your meter is reading "less than background" then it is clearly misleading you.