Pro Line Grout 2.5Kg Mid Grey is a highly versatile, cement-based grout designed for both wall and floor installations. It contains advanced anti-mould technology, offering flexibility for use on substrates with limited movement, including underfloor heating, timber, and concrete. With a low permeability, it is ideal for areas subject to prolonged water exposure, such as wet rooms, showers, and swimming pools. Special additives increase water repellence, creating a bead effect. This grout dries to a durable, shrink-resistant, mould-resistant, and water-resistant finish, suitable for both internal and external use. It is perfect for grouting ceramic, porcelain, mosaic, glass, quarry, terracotta, and natural stone tiles. The grout contains 30% recycled materials and is available in various colours.