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Self-Cleaning Glass: Pilkington Activ Glass

by Justin Thomas •

"Pilkington Activ" glass needs little cleaning, reducing consumption of detergent and water. The active glass has a special nano-scale (extremely thin) coating of microcrystalline titanium oxide which reacts to daylight. The reaction breaks down dirt on the glass, and when the water hits the glass the dirt slides off. The chemical used — titanium dioxide is a fairly benign compound …