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Spray-On Liquid Glass

bLanark writes with news of a new substance that can be sprayed on for a durable, easy-to-clean film on almost any substance, hard or soft. The liquid glass is essentially pure silicon dioxide, and it goes on in a layer 15 to 30 atoms thick. It is breathable and flexible, but waterproof and resistant to bacterial growth. The patent is held by a German company, Nanopool, which is in discussion with many parties about a wide range of uses: keeping public spaces sanitary, keeping restaurants clean, and keeping cars or trains clean. "The spray forms a water-resistant layer, meaning it can be cleaned using only water. Trials by food-processing companies showed that sterile surfaces covered with a film of liquid glass were equally clean after a rinse with hot water as after their usual treatment with strong bleach."

4 of 293 comments (clear)

  1. Anti-graffiti? by Anonymous Coward · · Score: 4, Insightful

    I wonder if this could help make graffiti removal easier. Spray this on a clean road sign, and then just wash it with water if it gets tagged. Sure could help new drivers in Los Angeles.

  2. Re:But will it get you high when you snort it? by Chyeld · · Score: 4, Insightful

    OP was pointing out that spraying a thin layer of a substance that is known to damage the lungs when inhaled over everything you own is a good way of ensuring said damage to your lungs.

    EROSION, people. Most mountains are made of solid granite a harder substance than glass a glass shell, yet they are scoured into sand over time by the simple act of the wind blowing particulate against them. A glass shell over your counter-top is going to be silicon dust in the air in a few months of use, if it lasts that long.

  3. Re:bleach is great but focus on antibiotics by ceoyoyo · · Score: 5, Insightful

    Bleach is the nuke that people who are serious about killing bacteria use to clean their counters with. Antibacterial cleaners are the things the amateurs at home use.

    If you can satisfy the pros that they don't need to use bleach on their counters then the only remaining reason for anyone to use an antibacterial cleaner on his counter at home is superstition.

  4. Re:New? Really? by Ungrounded+Lightning · · Score: 4, Insightful

    I'm curious about the strength of such a coating; there doesn't not appear to be any suggestion that the glass is bonded to the surface by anything stronger than van der Waals forces.

    If the short-chains bond to each other, some of them might bond to the surface (if its structure is appropriate).

    Even if not, unless the surface is mirror-smooth it will have irregularities. A liquid that cross-links into a solid will wrap such irregularities and form a mechanical interference bond - like a surface wrapped under a rivet, a mushroom-shaped extension into a void, or a root into a crack.

    Van der Walls forces are not trivial - especially between form-fitted irregularly-shaped solids. And if the "glass" and its substrate have any charge asymmetry the setting glass will also tend to settle into place with opposite charges nearby, forming something like a hydrogen bond.

    This might stick on to many surfaces very well.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way