Posted by KathyB on
URL: https://www.es-forum.com/Wallpaper-blocks-Wifi-tp3977923.html

If it can be this easy, it would be wonderful. Kathy

http://www.connexionfrance.com/Wallpaper-Metapaper-Wifi-mobile-phone-Grenoble-Fabien-Barros-Ahlstrom-13673-view-article.html

Wallpaper blocks Wifi and phones
           
           
              May 08, 2012
           
           
           
               
                         
                         
A NEW wallpaper that can filter out Wifi waves has been developed by
 French researchers: and they say it could be priced the same as classic
 wallpaper.



Pierre Lemaitre-Auger of the Grenoble Institut Polytechnique said
the wallpaper - called Métapapier or Metapaper - would give people and
businesses reassurance about electromagnetic radiation from Wifi and
mobile phone signals.



It has a treble purpose: shielding people from outside radiation,
ensuring homes and offices' own Wifi signal is not being hacked or
hijacked - and looking good.



Developed by Grenoble INP Phd student Fabien De Barros and the
Centre Technique du Papier, it uses a printed pattern of conductive
silver ink that filters out specific frequencies such as the 0.9, 1.8
and 2.1 GHz of mobile phone signals or the 2.45 and 5.5 GHz of Wifi.



However, the filters allow other waves such as FM radio or TV to pass through.



The researchers said it could also help improve sound-proofing and
would be used either as backing paper or as wallpaper but could also be
used as part of  floor-coverings or plasterboard.



France uses about 60 million rolls of wallpaper a year and the
Centre Technique du Papier estimated it could become a €30 million
market for France alone.



Métapapier will be marketed by Finnish company Ahlstrom, which has
bought the rights. It should be on the market next year. A similar
product was developed by researchers at BAE systems in 2004, but not
brought to market.





[Non-text portions of this message have been removed]