SOLUTION / PUBLIC SOURCE RECORD
Joma Surface Treatment for concrete buildings uses nanotechnology
- Published 22 March 2023; updated 21 September 2026; estimated reading time 2 minutes. Marked available; listed under Architecture and construction.
- Joma Surface Treatment, a Tiotech branch, uses water-based titania nanoparticles on concrete. The company describes the coating as non-toxic and biocide-free. Its photocatalytic effect under sunlight is said to break down nitrogen oxides into nitrates and organic matter such as algae, fungi and bacteria into carbon dioxide and water. The coating also repels water and is intended to keep concrete from darkening/greening and reduce chemical cleaning and maintenance.
- The article presents NOₓ reduction as an urban-air-quality benefit and says the technology can be used on buildings globally, including by households. It provides no quantified removal rates, field-trial results or independent efficacy measurements.
- The cited photocatalyst-products market projection—USD 4.58 billion by 2025 from USD 1.65 billion in 2016—is historical. Listed SDGs are 3 (Good health and well-being) and 11 (Sustainable cities and communities).
- Company: TIOTECH AS, Sandbrekketoppen 38, 5224 Nesttun, Norway; joma-int.com. No individual contact was displayed on this page.