Smartseal Roof Tile Sealer, For Concrete, Slate and Clay Roof Tiles, 10yr Water Repellent, Protecting Against Moss and Algae, 25L

Smartseal Roof Tile Sealer is a clear, professional-grade, solvent-free, acrylic impregnating sealer for concrete, clay tile or slate roofs. It creates a water repellent surface and restricts the growth of moss, algae, and lichens.