Cleaning is a hidden real estate tax. Self-cleaning materials with 'Lotus Effect' repel water, oil, graffiti and bacteria. Photocatalytic TiO₂ destroys viruses under LED light. White reception desk after a year — brand new.
Hydrophobicity and Oleophobicity: Nanotexture Physics
Nano-texture mimics lotus leaf (Nelumbo nucifera) microstructure. Contact angle 150-170° (superhydrophobicity). Drop rolls into ball, picking up dust. Works for espresso, wine, marker, oily fingerprints.
Technologies: Ultra-Ever Dry, NeverWet Industrial, CeramicPro. Lifespan 3-7 years. Cleaning: air stream or microfibre without chemicals.
Photocatalysis: Light Kills Dirt and Bacteria
Nano-titanium dioxide (TiO₂, anatase): under any light (LED 4000K) oxygen converts to active radicals decomposing organics. 24/7 disinfection. E.coli, flu, COVID: 99.9% in 24h (ISO 21702).
Manufacturers: Toto Hydrotect, Pureti, StoPhotosan. Compatible with wood, stone, metal, glass. No visual change. 10+ year guarantee.
Economics of Cleanliness: 18-Month ROI
Payback: –50% cleaning staff wages, –90% chemicals. Reduced wear, no abrasive scratches. 'Forever new' look = trust +12% (CBRE, 2024).
Calculation for 500 m²: nanocoating ≈ $8,000. Savings/year ≈ $6,000. Full payback: 16 months. Then — pure savings.