Suitable for cleaning patios, paths, tarmac, block paving, roofs and tennis courts, in fact ANY outside surface exposed to rainfall. Kills and removes Moss, Mould,Lichen and Algae with no need of special equipment, just a good garden sprayer. Wet & Forget helps prevent the damage caused by harsh scouring, scrubbing or water blasting. Unlike bleach based cleaners Wet & Forget has an unlimited shelf life.
Some of the ingredient remains active if the surface is porous to prevent premature recontamination.