Resolva Extra Clean Patio Power Clean with Long lasting protection 2.5L Resolva Xtra Clean removes both green mould and algae from patios and fencing as well as decking and many more surfaces. Additionally, this effective formulation requires no scrubbing or even pressure washing. Therefore it's completely hassle-free. Furthermore, it works without the need for acids or bleach, which can damage some surfaces. This 2.5-litre bottle covers approximately 107m2. Features: Easy to use, no scrubbing required Kills green mould, red and grey algae Results within 1 week Long-lasting protection Kills lichen� and bacteria Biodegradable Contains Dimethylbenzyl Ammonium Chloride How to use: Before treatment remove any debris such as leaves, twigs or weeds and scrape away any thick areas of moss. Mix the product in a watering can or sprayer, following the dilution rate on the pack. Cover the area to be treated and leave to dry. No need to scrub and within 1 week the product will start working. Always read the full label and product information before use. Box Contains: Resolva Extra Clean Patio Power Clean with Long lasting protection 2.5L