- Over 20sq/m per litre
For the best results, remove as much mould algae or lichen as possible by scraping and brushing, before treating. Weathershield Multi-Surface Fungicidal Wash will only be effective on surface growths. Where old growths have been trapped between previous coats, all existing coatings need to be removed. Special precautions should be taken during surface preparation of pre 1960’s paint surfaces over wood and metal as they man contain harmful lead.
After use, remove as much product as possible from equipment before cleaning with water.