LeetPirate Posted October 4, 2009 Share Posted October 4, 2009 Anti-Wi-Fi paint keeps your wireless signal to yourself Original Article. Wed Sep 30, 2009 3:20PM EDT Don't like the idea of your neighbors rudely snooping on the wireless signal you slaved to pay for from the lazy comfort of their living room? It's not just about slowing down your connection; while they're downloading Mad Men via bittorrent, you could be on the hook for their actions.Wireless security and encryption systems are fraught with problems and insecurity, and other methods to restrict your signal to a small area are cumbersome at best.Enter a new solution: Anti-Wi-Fi paint.The idea is simple: Use a special paint on walls where you don't want wireless to pass through (say the exterior of your house). The secret is mixing aluminum-iron oxide particles in with the paint. The metal particles resonate at the same frequency as Wi-Fi and other radio waves, so signals can't pass through the thin layer of pigment. Outsiders would simply be unable to access your wireless network, just as you, inside the house, won't be able to interlope on anything beamed on the outside.Developed by the University of Tokyo, the paint is said to be the first that can block radio frequency in higher spectra where Wi-Fi and other higher-bandwidth communications occur rather than just low-frequency wireless like FM radio. Most Wi-Fi technologies operate at 2.4GHz; the Tokyo paint can reportedly block frequencies all the way up to 100GHz, with a 200GHz-blocking paint now in the works.The paint isn't just of interest to those concerned about wireless leaking out of the building. Movie theaters have long been interested in finding a legal way to keep cell phones silent during screenings. Electronic jammers that actively block wireless signals are illegal, but passive materials that prevent wireless signals from getting through are not. Since the wireless-blocking paint can also block the lower-frequency signals that cell phones use, addled mobile junkies would have no outlet for reaching the outside world.Some aren't convinced that anti-Wi-Fi paint makes a lot of sense for a secure situation, though. Says one engineer, "Surely the thought of having to redecorate a building in order to provide Wi-Fi security is more costly and complex than the security functionality available in even the cheapest of Wi-Fi access points..."Good point. Link to comment Share on other sites More sharing options...
HX1 Posted October 4, 2009 Share Posted October 4, 2009 I want a tanker outside my house full of this stuff.. NOW.. Link to comment Share on other sites More sharing options...
Administrator DKT27 Posted October 4, 2009 Administrator Share Posted October 4, 2009 How much is it? Good to see technology goin ahead against the bad people. So how much colors does it offer? :P Link to comment Share on other sites More sharing options...
LoKz Posted October 4, 2009 Share Posted October 4, 2009 What about cell phones?.... Wi-Fi and other radio waves, so signals can't pass through the thin layer of pigment :fear: Link to comment Share on other sites More sharing options...
Administrator DKT27 Posted October 5, 2009 Administrator Share Posted October 5, 2009 Go towards window and talk. ;) Link to comment Share on other sites More sharing options...
HX1 Posted October 5, 2009 Share Posted October 5, 2009 This for me would be perfect.. not to mention that interference and electric noise levels that could be cut down...If this tech was used in that way.. I could go for that.. but after doing some looking into things I think that .. really things just need to be engineered better.. Link to comment Share on other sites More sharing options...
LeetPirate Posted October 5, 2009 Author Share Posted October 5, 2009 In my opinion this paint is rubbish to be sold as overpriced useless items for rich people to waste money on. It has 0% usage in a residential premises unless you live inside a basement with no windows. As for the other applications of it they could just use a frequency jammer for so much less money than wasting time painting walls. They are just wasting aluminium or whatever it is which could be used for something better. Last of all this is nothing new, the idea stolen from the Faraday's cage principle which has existed for many years. You could do this for less money, just coat your bare walls with foil then resurface the walls with a new layer of drywall, problem solved. Of course the paint may be more convenient for certain types of installations where you don't want to strip your walls. Link to comment Share on other sites More sharing options...
myidisbb Posted October 5, 2009 Share Posted October 5, 2009 What about cell phones?.... Wi-Fi and other radio waves, so signals can't pass through the thin layer of pigment :fear:yeap therefor it would be ilelgal to use this paint in certain public areas. as lee said waste of money anyway Link to comment Share on other sites More sharing options...
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