Removes dirt, stains, moss and algae growth on paths, patios and many other surfaces. Mosgo Path and Patio Cleaner can be used all year round to clean paths and patios. To use, wet area to be treated, mix 1L of product to 2L of water, apply using watering can and brush thoroughly. Rinse off after 10-20 minutes. Can be used on masonry walls, brick, concrete and stone. Do not use on tarmac. If moss growth is heavy, Mosgo Greenremover can be used first - but use 2 days prior. Contains: Mineral acid salt and cationic fatty amine derivative.