Clarke BSR5 Black Spot Remover 5L

Clarke Black Spot Remover is a highly concentrated formula which lifts dirt grease and grime from most types of block paving, concrete and patio surfaces by breaking down the black spots and lichens. 5 Litres will cover up to 40m² and can be easily applied directly to the surface using a pump sprayer or watering can. For best results the solution should be left overnight and rinsed. Not suitable for tarmac, resin or decking.