Penetrates Deep Into Crevises, Capillary Cell Membranes and Embedded Root Line Infestations to Effectively Decompose all Traces of Biological Spore Growth for a Long Lasting Crystal Clean Algae Fee Surface. Use When a Cleaned Looking Surface Is Time Sensitive and Cannot Wait for the Natural Cleaning Process of Eco Mold Go Pro-Clean. Apply evenly to a Completely Dry Surface That Has Been Previously Pressured Washed or Surface Cleaned.