Nano protective primer + nano self-cleaning topcoat: waterproof inside, self-cleaning outside. Stops water marks, mould and dust build-up.

Penetrates stone and concrete pores to block water and pollutants — no surface film.
Moisture escapes, contamination stays out — no efflorescence or mould.
Nano TiO₂ keeps breaking down oil, mould and organics in daylight.
Contact angle < 15°: rain sheets under grime and washes it away.
Colourless and transparent; the material looks the same.
Untreated porous stone soaks up water, pulling pollutants inside — mould, efflorescence, discolouration follow.
The primer forms an internal barrier; the topcoat adds super-hydrophilic and photocatalytic action so rain alone keeps the surface clean.
One application, 3–5 years of protection.
Waterproof, anti-fouling, anti-mould, anti-algae
Concrete, stone and other porous substrates; GRC elements; granite and marble facades
Organosilicon primer + nano-TiO₂ topcoat
Assess porosity, weathering and site conditions.
Verify adhesion, water resistance and anti-fouling.
Stone cleaner removes dust, stains, algae and old residue.
Penetrating primer first, then the nano self-cleaning topcoat.
About 4 h to form a dense, transparent two-layer film.
Water, fouling and self-cleaning tests with an assessment report.





The primer stops water uptake; the topcoat lets rain carry off mud — no more damaging pressure-washing.
The two-layer system lets the facade self-clean, cutting washing cycles and rope-access work.
Wholesaler, distributor, builder, developer, engineer, designer or asset manager — Feibo tailors self-cleaning solutions to your project