Dunlop Flexible Floor & Wall Tile Grout in grey for grouting natural stone, mosaics, glazed and porcelain tiles in joints up to 20mm. This flexible and highly durable tile grout is water and frost-resistant and suitable for interior and exterior use. It has a hard-wearing finish and is suitable for floor and wall tiling, ceramic and mosaic tiles, and for interior and exterior use. Please note: Grout & Adhesive are not eligible for return. Contact a member of the sales team if you need more information before purchasing.