Albany Fungicidal wash is specially formulated to prevent & eradicate the growth of fungi mould, algae & lichen from most masonry surfaces. Suitable for use on plaster, brickwork, cement & stone. Can also be used on most common types of masonry wall surfaces, although a small test area application is recommended to verify compatibility. Albany Fungicidal Wash is a multi surface treatment which can be used on either interior or exterior surfaces.