Removes all types of organic growth, algae, etc. from brick concrete, wood, tarmacadam, painted surfaces, decking, garden furniture, paviours, plastic and glass. Can also be used on fabric awnings. Can be applied internally and externally. Removes and eradicates organic growth. Suitable for use on wood, concrete, plastic, stone and tarmac. Easy to use just apply and leave to dry. Ideal for use at home, in the garden, for caravans and boats, public walk areas, in farm yards, kennels and stables. HSE Approved: Certificate No 9828.