HANAFINN Sola-Kleena™ is an innovative self-cleaning photo-active (light activated) cleaner for hard porous surfaces. It works particularly well on lighter colored materials such as concrete. You simply apply it and let it do all the work. A light coat of Sola-Kleena™ breaks down organic dirt and grime and other pollutants, cleaning the surface over weeks. Sola-Kleena™ will keep working on the treated surface often for years. Sola-Kleena™ is suitable for use on outdoor, and residential / commercial applications on patios, decks, floors, building facades, walls, cladding, public spaces, swimming pool surrounds, garages, driveways, eating and entertaining areas.