Smartseal Green Clear is a powerful, highly effective, microbiological biocide, that, once applied, will quickly start to rid the area of most types of green organic growth on external hard surfaces. This easy-to-apply formulation is suitable for controlling and removing organic growth, algae, mould and the various types of lichen that are often found on driveways, patios, roofs, walls and paths. It can also be reapplied at any time to help prevent the reappearance of these various species of organic growth and keep external hard surfaces looking clean at all times. Green Clear is perfectly suited for the DIY market and can easily be applied with a watering can or sprayer.