Spray-on miracle could revolutionise manufacturing

The secret of liquid glass is that it forms an ultra-thin film between 15 and 30 molecules thick – about 500 times thinner than human hair. On this nanoscale – a few millionths of a millimetre thick – liquid glass turns into a highly flexible invisible barrier that repels water, dirt and bacteria, yet is resistant to heat, acids and UV radiation but remains “breathable”.

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The liquid glass is composed of almost pure silicon dioxide, the chemical constituent of quartz or silica, the most abundant mineral in the Earth’s crust. It is quite inert and has no known harmful impact on the environment, unlike many of the domestic and industrial cleaning products its use could help to reduce.

The “easy-clean” properties of the liquid glass could lead to drastic cuts in the amount of potentially toxic cleaning agents used in factories, offices, schools, hospitals and the home, as well as cutting the costs of labour and the amount of time spent scrubbing surfaces.